CN104179752A - Performance test system for HCU (hydraulic control unit) in automobile brake system - Google Patents
Performance test system for HCU (hydraulic control unit) in automobile brake system Download PDFInfo
- Publication number
- CN104179752A CN104179752A CN201410354112.7A CN201410354112A CN104179752A CN 104179752 A CN104179752 A CN 104179752A CN 201410354112 A CN201410354112 A CN 201410354112A CN 104179752 A CN104179752 A CN 104179752A
- Authority
- CN
- China
- Prior art keywords
- ball valve
- pneumatic ball
- control unit
- hydraulic control
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
本发明涉及一种汽车制动系统中液压控制单元的性能测试系统，属于汽车底盘动力学控制的零部件质量检测技术领域。本测试系统包括压力提升装置、液压管路系统、控制测量装置以及环境模拟装置，测试系统的各部分通过管路相连。本发明提出的汽车制动系统中液压控制单元的性能测试系统，可以对液压控制单元(HCU)阀的响应速度及其密封性、柱塞泵的流量及其增压能力、蓄能器的容积等参数进行精确的测试。
The invention relates to a performance test system of a hydraulic control unit in an automobile braking system, which belongs to the technical field of component quality detection of automobile chassis dynamics control. The test system includes a pressure raising device, a hydraulic pipeline system, a control measurement device and an environment simulation device, and all parts of the test system are connected through pipelines. The performance testing system of the hydraulic control unit in the automobile braking system proposed by the present invention can check the response speed of the hydraulic control unit (HCU) valve and its sealing performance, the flow rate of the plunger pump and its boosting capacity, and the volume of the accumulator. and other parameters for precise testing.
Description
Technical field
The present invention relates to the Performance Test System of hydraulic control unit in a kind of brake system of car, belong to the component technical field of quality detection of automobile chassis dynamics Controlling.
Background technique
In order to improve vehicle performance, Hyundai Motor has been equipped electronic stabilizing control system (ESC) and anti-blocking brake system (ABS), and wherein hydraulic control unit (hereinafter to be referred as HCU) is these two topmost function executor of system.Hydraulic control unit (HCU) is assembled and is formed by high-speed switch electromagnetic valve, plunger pump and accumulator.Wherein, the speed of response of high-speed switch electromagnetic valve and sealing, the pumping ability of plunger pump, and the volume of accumulator etc., be the index of evaluating hydraulic control unit (HCU) ride quality.The performance of hydraulic control unit is carried out to full test, in the research and development of hydraulic control unit (HCU) and production process, have an important meaning.
At present, to the detection of hydraulic control unit (HCU), be mainly in production line, by the method that single hydraulic control unit (HCU) is vacuumized, the sealing of hydraulic control unit is tested.This method efficiency is high, but content measurement is single, and because tested media is air rather than brake fluid, so can accurately not reflect the sealability of hydraulic control unit (HCU) under actual operating conditions.
At present, the measurement to hydraulic control unit (HCU) accumulator actual volume, is generally by orcible entry accumulator chamber plug, by actual measurement accumulator piston diameter and stroke, calculates accumulator volume.The inadequate fast and easy of this method, and have irreversible destruction for hydraulic control unit, can only inspect by random samples product.
Summary of the invention
The object of the invention is to propose the Performance Test System of hydraulic control unit in a kind of brake system of car, Performance Test System to existing hydraulic control unit improves, to realize all round properties test of auto brake system hydraulic control unit (HCU).
In the brake system of car that the present invention proposes, the Performance Test System of hydraulic control unit, comprises pressure lifting device, hydraulic plumbing system, control and measure device and environment simulator;
Described pressure lifting device comprises fuel tank, variable displacement pump, servo proportion, accumulator, the first pneumatic ball valve and the second pneumatic ball valve, the entrance of described servo proportion is connected with fuel tank with variable displacement pump successively by working line, and the outlet of servo proportion is connected with the second pneumatic ball valve with the first pneumatic ball valve by working line respectively;
Described hydraulic plumbing system comprises the first simulation master cylinder, the second simulation master cylinder, the first displacement transducer, second displacement sensor, the first oil can, the second oil can, the 3rd pneumatic ball valve, the 4th pneumatic ball valve, the 5th pneumatic ball valve, the 6th pneumatic ball valve, the first pressure transducer, the second pressure transducer, hydraulic control unit (HCU), the 3rd pressure transducer, the 4th pressure transducer, the 5th pressure transducer, the 6th pressure transducer, the 7th pneumatic ball valve, the 8th pneumatic ball valve, the 9th pneumatic ball valve, the tenth pneumatic ball valve, the first hydraulic pressure steel cylinder, the second hydraulic pressure steel cylinder, the 3rd hydraulic pressure steel cylinder and the 4th hydraulic pressure steel cylinder, the back cavity oil inlet of the first described simulation master cylinder is connected with the first pneumatic ball valve by working line, and the back cavity oil inlet of the second simulation master cylinder is connected with the second pneumatic ball valve by working line, described the first simulation piston of master cylinder and the measuring end of the first displacement transducer are connected, and the second simulation piston of master cylinder and the measuring end of second displacement sensor are connected, the first described oil can is connected with the front cavity oil inlet of the first simulation master cylinder with the 3rd pneumatic ball valve successively by working line, and the second oil can is connected with the second simulation master cylinder front cavity oil inlet with the 4th pneumatic ball valve successively by working line, the ante-chamber oil outlet of the first described simulation master cylinder is connected with the 5th pneumatic ball valve, the first pressure transducer and the first filler opening of hydraulic control unit (HCU) successively by working line, and the ante-chamber oil outlet of the second simulation master cylinder is connected with the 6th pneumatic ball valve, the second pressure transducer and the second filler opening of hydraulic control unit (HCU) successively by working line, the first oil outlet of described hydraulic control unit (HCU) by working line successively with the 3rd pressure transducer, the 7th pneumatic ball valve is connected with the first hydraulic pressure steel cylinder, the second oil outlet of hydraulic control unit (HCU) by working line successively with the 4th pressure transducer, the 8th pneumatic ball valve is connected with the second hydraulic pressure steel cylinder, the 3rd oil outlet of hydraulic control unit (HCU) by working line successively with the 5th pressure transducer, the 9th pneumatic ball valve is connected with the 3rd hydraulic pressure steel cylinder, the 4th oil outlet of hydraulic control unit (HCU) by working line successively with the 6th pressure transducer, the tenth pneumatic ball valve is connected with the 4th hydraulic pressure steel cylinder,
The back cavity oil outlet of the first described simulation master cylinder is connected with the 12 pneumatic ball valve by gas exhaust piping jointly with the back cavity oil outlet of the second simulation master cylinder, and the 12 pneumatic ball valve is connected with fuel tank by gas exhaust piping; The first described hydraulic pressure steel cylinder, the second hydraulic pressure steel cylinder, the 3rd hydraulic pressure steel cylinder and the 4th hydraulic pressure steel cylinder are connected with the filler opening of exhaust metering pump jointly by gas exhaust piping, the oil outlet of exhaust metering pump is connected with the 11 pneumatic ball valve by gas exhaust piping, and the 11 pneumatic ball valve is connected with the front cavity oil inlet of the first simulation master cylinder and the front cavity oil inlet of the second simulation master cylinder respectively by gas exhaust piping;
Described control and measure device is a process control machine that the test process of hydraulic control unit is controlled, the output port of process control machine by signaling line respectively with variable displacement pump, servo proportion, the first pneumatic ball valve, the second pneumatic ball valve, the 3rd pneumatic ball valve, the 4th pneumatic ball valve, the 5th pneumatic ball valve, the 6th pneumatic ball valve, hydraulic control unit (HCU), the 7th pneumatic ball valve, the 8th pneumatic ball valve, the 9th pneumatic ball valve, the tenth pneumatic ball valve, exhaust metering pump, the 11 pneumatic ball valve is connected with the 12 pneumatic ball valve, the input port of process control machine by signaling line respectively with the first displacement transducer, second displacement sensor, the first pressure transducer, the second pressure transducer, the 3rd pressure transducer, the 4th pressure transducer, the 5th pressure transducer, the 6th pressure transducer is connected with vibration transducer, described vibration transducer machinery is connected on the housing of hydraulic control unit (HCU),
Described environment simulator is a high-low temperature test chamber, by the proportional space of working line, arranges, hydraulic control unit (HCU) and the working line being connected with hydraulic control unit (HCU) are placed in high-low temperature test chamber.
The Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, its advantage is:
1, the Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, employing provides pressure source with the hydraulic power unit of hydraulic accumulator, pressure regulates fast and stable, and master cylinder pressure can not change with piston displacement, can provide precise and stable back pressure for test.
2, the Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, adopts steel cylinder as simulation wheel cylinder, almost there is no rubber pressure part in system, and the volume rigidity of system is stable, and the pressure-volume characteristic linearity of system is high.Therefore system is high to the precision of hydraulic control unit test, favorable repeatability.
3, the Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, adopt two identical master cylinders to be connected with two filler openings of hydraulic control unit (HCU) respectively, realize the independent test of two cover brake circuits in hydraulic control unit (HCU), improved testing precision.
4, the Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, can be in same system flow, pump active boost ability, the sealing of valve, the response time of valve and the accumulator volume of the pump of testing hydraulic control unit, test method is succinctly feasible, according to method, can record accurate data.
5, the Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, can record the actual performance data of hydraulic control unit (HCU).Performance data, as the fundamental performance parameter of hydraulic control unit (HCU), can provide basic basis for the algorithm development of automobile electron stabilization control system, and data can reduce debugging work load accurately, and boosting algorithm is controlled effect.
6, in the brake system of car that the present invention proposes, the Performance Test System of hydraulic control unit, does not need tested hydraulic control unit (HCU) to carry out any transformation, is non-destructive testing.The test system that the present invention proposes can provide quality of product non-destructive inspection for hydraulic control unit (HCU) production line.
7, in the brake system of car that the present invention proposes, the Performance Test System of hydraulic control unit, adopts with the simulation master cylinder that can measure displacement piston, in little amplitude, increases under the prerequisite of cost, has realized the high-acruracy survey of small pulse flow.There is good practicability and Economy.
8, the Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, adopts two loops capable of circulation, and pressure lifting device is independently a loop, and hydraulic plumbing system is independently a loop.Brake fluid in pressure lifting device is due to the continuous stirring of variable displacement pump, oil temperature can raise rapidly, but because pressure lifting device is independently a loop, high-temperature brake liquid can not flow to measurand hydraulic control unit (HCU), can directly not change test temperature condition.And hydraulic plumbing system is independently a loop, so the brake fluid in loop can inner loop, can upgrade fast the brake fluid of the inner perfusion of hydraulic control unit (HCU), with the efficiency of proof test.
9, the Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, can test accurately to the parameters such as volume of the flow of the speed of response of hydraulic control unit (HCU) valve and sealing thereof, plunger pump and boosting capability thereof, accumulator.
Accompanying drawing explanation
Fig. 1 is hydraulic control unit Performance Test System structural representation of the present invention.
In Fig. 1, the 1st, fuel tank, the 2nd, variable displacement pump, the 3rd, accumulator, the 4th, servo proportion, 5 is first pneumatic ball valves, 6 is second pneumatic ball valves, 7 is first simulation master cylinders, 8 is second simulation master cylinders, 9 is first displacement transducers, the 10th, second displacement sensor, 11 is first oil cans, 12 is second oil cans, 13 is the 3rd pneumatic ball valves, 14 is the 4th pneumatic ball valves, 15 is the 5th pneumatic ball valves, 16 is the 6th pneumatic ball valves, 17 is first pressure transducers, 18 is second pressure transducers, the 19th, hydraulic control unit (HCU), 20 is the 3rd pressure transducers, 21 is the 4th pressure transducers, 22 is the 5th pressure transducers, 23 is the 6th pressure transducers, 24 is the 7th pneumatic ball valves, 25 is the 8th pneumatic ball valves, 26 is the 9th pneumatic ball valves, 27 is the tenth pneumatic ball valves, 28 is first hydraulic pressure steel cylinders, 29 is second hydraulic pressure steel cylinders, 30 is the 3rd hydraulic pressure steel cylinders, 31 is the 4th hydraulic pressure steel cylinders, the 32nd, exhaust metering pump, 33 is the 11 pneumatic ball valves, 34 is the 12 pneumatic ball valves.
Solid line pipeline in Fig. 1 represents test system working line, and dotted line represents test system exhaust pipeline.
Embodiment
The Performance Test System of hydraulic control unit in the brake system of car that the present invention proposes, its structure as shown in Figure 1, comprises pressure lifting device, hydraulic plumbing system, control and measure device and environment simulator.
Pressure lifting device wherein, comprise fuel tank 1, variable displacement pump 2, servo proportion 4, accumulator 3, the first pneumatic ball valve 5 and the second pneumatic ball valve 6, the entrance of servo proportion 4 is connected with fuel tank 1 with variable displacement pump 2 successively by working line, and the outlet of servo proportion 4 is connected with the second pneumatic ball valve 6 with the first pneumatic ball valve 5 by working line respectively.
Hydraulic plumbing system wherein comprises the first simulation master cylinder 7, the second simulation master cylinder 8, the first displacement transducer 9, second displacement sensor 10, the first oil can 11, the second oil can 12, the 3rd pneumatic ball valve 13, the 4th pneumatic ball valve 14, the 5th pneumatic ball valve 15, the 6th pneumatic ball valve 16, the first pressure transducer 17, the second pressure transducer 18, hydraulic control unit (HCU) 19, the 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23, the 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve 27, the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30 and the 4th hydraulic pressure steel cylinder 31.The back cavity oil inlet of the first simulation master cylinder 7 is connected with the first pneumatic ball valve by working line, and the back cavity oil inlet of the second simulation master cylinder 8 is connected with the second pneumatic ball valve by working line; Described the first simulation piston of master cylinder 7 and the measuring end of the first displacement transducer 9 are connected, and the second simulation piston of master cylinder 8 and the measuring end of second displacement sensor 10 are connected.The first oil can 11 is connected with the front cavity oil inlet of the first simulation master cylinder 7 with the 3rd pneumatic ball valve 13 successively by working line, and the second oil can 12 is connected with the second simulation master cylinder 8 front cavity oil inlet with the 4th pneumatic ball valve 14 successively by working line.The ante-chamber oil outlet of the first simulation master cylinder 7 is connected with the first filler opening of hydraulic control unit (HCU) 19 with the 5th pneumatic ball valve 15, the first pressure transducer 17 successively by working line, and the ante-chamber oil outlet of the second simulation master cylinder 8 is connected with the second filler opening of hydraulic control unit (HCU) 19 with the 6th pneumatic ball valve 16, the second pressure transducer 18 successively by working line.The first oil outlet of hydraulic control unit (HCU) 19 by working line successively with the 3rd pressure transducer 20, the 7th pneumatic ball valve 24 is connected with the first hydraulic pressure steel cylinder 28, the second oil outlet of hydraulic control unit (HCU) 19 by working line successively with the 4th pressure transducer 21, the 8th pneumatic ball valve 25 is connected with the second hydraulic pressure steel cylinder 29, the 3rd oil outlet of hydraulic control unit (HCU) 19 by working line successively with the 5th pressure transducer 22, the 9th pneumatic ball valve 26 is connected with the 3rd hydraulic pressure steel cylinder 30, the 4th oil outlet of hydraulic control unit (HCU) 19 by working line successively with the 6th pressure transducer 23, the tenth pneumatic ball valve 27 is connected with the 4th hydraulic pressure steel cylinder 31.The back cavity oil outlet of the first simulation master cylinder 7 is connected with the 12 pneumatic ball valve 34 by gas exhaust piping jointly with the back cavity oil outlet of the second simulation master cylinder 8, and the 12 pneumatic ball valve 34 is connected with fuel tank 1 by gas exhaust piping.The first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30 and the 4th hydraulic pressure steel cylinder 31 are connected with the filler opening of exhaust metering pump 32 jointly by gas exhaust piping, the oil outlet of exhaust metering pump 32 is connected with the 11 pneumatic ball valve 33 by gas exhaust piping, and the 11 pneumatic ball valve 33 is connected with the front cavity oil inlet of the first simulation master cylinder 7 and the front cavity oil inlet of the second simulation master cylinder 8 respectively by gas exhaust piping.
Control and measure device is wherein a process control machine that the test process of hydraulic control unit is controlled, the output port of process control machine by signaling line respectively with variable displacement pump 2, servo proportion 4, the first pneumatic ball valve 5, the second pneumatic ball valve 6, the 3rd pneumatic ball valve 13, the 4th pneumatic ball valve 14, the 5th pneumatic ball valve 15, the 6th pneumatic ball valve 16, hydraulic control unit (HCU) 19, the 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve 27, exhaust metering pump 32, the 11 pneumatic ball valve 33 is connected with the 12 pneumatic ball valve 34, the input port of process control machine by signaling line respectively with the first displacement transducer 9, second displacement sensor 10, the first pressure transducer 17, the second pressure transducer 18, the 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23 is connected with vibration transducer (not shown), and this vibration transducer machinery is connected with the housing of hydraulic control unit (HCU) 19.
Environment simulator is wherein that a high-low temperature test chamber is not shown, proportional space by working line arranges, hydraulic control unit (HCU) 19 and the working line being connected with hydraulic control unit (HCU) are placed in high-low temperature test chamber.
Below in conjunction with accompanying drawing, introduce in detail working principle and the working procedure of test system of the present invention:
Fuel tank 1 in test system of the present invention is for storing brake fluid, and variable displacement pump 2 extracts brake fluid from fuel tank 1, and suction booster is delivered to pump discharge.Voltage stabilizing accumulator 3, for stablizing variable displacement pump 2 outlet pressures, is eliminated pressure surge.Servo proportion 4 is for fine adjustment variable displacement pump 2 outlet oil pressures, and servo proportion 4 is controlled by electrical signal by control and measure device, and the delivery pressure of pressure lifting device can be set by the process control machine in control and measure device.The first pneumatic ball valve 5, the second pneumatic ball valve 6 are respectively used to pilot pressure lifting device and the first simulation master cylinder 7, second is simulated the break-make of pipeline between master cylinder 8, and the first pneumatic ball valve 5, the second pneumatic ball valve 6 are also controlled by the process control machine in control and measure device.
In test system of the present invention first simulation master cylinder 7 and the second simulation master cylinder 8 are actual is the hydraulic jack that can measure piston displacement, oil cylinder is divided into two chambers by piston, the chamber being connected with pressure lifting device is called master cylinder back cavity, and in addition another chamber is called master cylinder ante-chamber.Simulation master cylinder piston is connected mutually with a displacement transducer, can the displacement of measure analog master cylinder piston by displacement transducer.The first simulation master cylinder 7, the second simulation master cylinder 8 back cavities connect pressure lifting device oil outlet, pressure lifting device can pump into brake fluid described the first simulation master cylinder 7 back cavities, the second simulation master cylinder 8 back cavities, thereby produce required brake fluid pressure, and be passed to ante-chamber by the first simulation master cylinder 7, the second simulation master cylinder 8 pistons.Described the first simulation master cylinder 7, the second simulation master cylinder 8 pistons respectively with the first displacement transducer 9, second displacement sensor 10 measuring end mechanical connections, can measure in real time master cylinder piston displacement.The first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers connect respectively the first filler opening and second filler opening of hydraulic control unit (HCU) 19, the first simulation master cylinder 7, the second simulation master cylinder 8 to the pipeline of hydraulic control unit (HCU) 19 have large rigidity, so the brake fluid flow of the first simulation master cylinder 7, the second simulation master cylinder 8 piston displacements generations can represent braking system rear end consumption liquid measure.The first oil can 11, the second oil can 12 are connected to the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers by working line respectively, the vertical height of the first oil can 11, the second oil can 12 positions is higher than the first simulation master cylinder 7, the second simulation master cylinder 8, brake fluid in the first oil can 11, the second oil can 12 can flow into respectively the first simulation master cylinder 7, the second simulation master cylinder 8, and forms open liquid level at the first oil can 11, the second oil can 12 openings.Between the first oil can 11, the second oil can 12 and the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers, the 3rd pneumatic ball valve 13, the 4th pneumatic ball valve 14 are housed, process control machine can be controlled the first oil can 11, whether the second oil can 12 is communicated with the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers.
Simulation master cylinder oil can assembly in test system of the present invention has two covers, is connected respectively, respectively two pressure chambers of simulated automotive brake master cylinder with the first filler opening of hydraulic control unit (HCU) 19 with the second filler opening.
The first hydraulic pressure steel cylinder 28 in test system of the present invention, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31 are connected to hydraulic control unit (HCU) 19 first oil outlets, the second oil outlet, the 3rd oil outlet, the 4th oil outlet by working line respectively, for replacing taking turns on real vehicle the hydraulic volume rigidity of break analog wheel break, thereby by regulating the actual volume of described the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31 to regulate its volume rigidity.The 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve 27 are housed between the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31 and hydraulic control unit (HCU) 19, directly close the 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26 and the tenth pneumatic ball valve 27 and can make the volume rigidity of hydraulic control unit (HCU) 16 oil outlets increase substantially, to accurately measure accumulator volume in hydraulic control unit (HCU) 16.
Control survey in test system of the present invention partly comprises process control machine and sensor.Process control machine has input output board, can sensor-lodging and carry out data logging and analysis; Also can send control command, control the discharge capacity of variable displacement pump 2 in test system, the delivery pressure of servo proportion 4, the action of the first pneumatic ball valve 5, the second pneumatic ball valve 6, the 3rd pneumatic ball valve 13, the 4th pneumatic ball valve 14, the 5th pneumatic ball valve 15, the 6th pneumatic ball valve 16, the 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve the 27, the 11 pneumatic ball valve 33, the 12 pneumatic ball valve 34, and the working state of inner each solenoid valves of hydraulic control unit (HCU) 19, motor.Process control machine in test system of the present invention, the PXI data acquistion system that real time operating system is housed that can be produced by American National instrument company forms.The built-in test procedure of process control machine, can adjust pressure source delivery pressure according to the different testing property project of hydraulic control unit (HCU) 19, and each pneumatic ball valve state, thereby changes testing hydraulic loop configuration.And in process of the test, gather the signal of displacement transducer, pressure transducer, current sensor and vibration transducer, record and analysing and processing, thereby reflect the corresponding performance index of hydraulic control unit (HCU) 19.Sensor comprises the first displacement sensor 9, second displacement sensor 10, the first pressure transducer 17, the second pressure transducer 18, the 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23, current sensor and vibration transducer.The first displacement sensor 9, second displacement sensor 10 respectively mechanical connection, on the piston of the first simulation master cylinder 7, the second simulation master cylinder 8, are simulated the piston displacement of master cylinder 8 for measuring the first simulation master cylinder 7, second.The first pressure transducer 17, the second pressure transducer 18 are connected to the first filler opening second filler opening of hydraulic control unit (HCU) 19, measure filler opening brake fluid pressure, represent respectively the delivery pressure of the first simulation master cylinder 7, the second simulation master cylinder 8.The 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23 are connected to the first oil outlet, the second oil outlet, the 3rd oil outlet, the 4th oil outlet of hydraulic control unit (HCU) 19, measure hydraulic fluid port brake fluid pressure, represent corresponding wheel brake pressure, namely represent respectively the internal pressure of the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31.Current sensor is placed in hydraulic control unit (HCU) 19 control circuits, the size of current flowing through for measuring hydraulic control unit (HCU) 19 each solenoid valves.Vibration transducer is adsorbed on hydraulic control unit (HCU) 19 housings, the vibration of taking a seat for measuring hydraulic control unit (HCU) 19 interior valve core of the electromagnetic valve, thus judgement solenoid closure is constantly.
Environment simulator is a high-low temperature test chamber, and test the temperature inside the box can be accepted process control machine and control, and between-40 ℃ to 70 ℃, regulates arbitrarily.Described hydraulic plumbing system is placed in high-low temperature test chamber, can the performance parameter of testing hydraulic control unit (HCU) under varying environment temperature and brake fluid temperature by changing high-low temperature test chamber temperature.
Test system of the present invention, by the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31, seal respectively the first oil outlet, the second oil outlet, the 3rd oil outlet, the 4th oil outlet of hydraulic control unit (HCU) 19, the volume rigidity that oil outlet is had meet the demands, generally gets propons 0.160cm
3/ Mpa, back axle 0.065cm
3/ MPa; In fuel tank 1, fill with brake fluid, open the first pneumatic ball valve 5, the second pneumatic ball valve the 6, the 12 pneumatic ball valve 34, open variable displacement pump 2, brake fluid is pumped to the first simulation master cylinder 7, the second simulation master cylinder 8 back cavities from fuel tank 1, then is back to fuel tank 1 by the 12 pneumatic ball valve 34.Brake fluid by a period of time circulates to be taken away the first simulation master cylinder 7, the second simulation master cylinder 8 back cavities and is attached thereto the bubble existing in the working line connecing, then close the 12 pneumatic ball valve 34, then close again variable displacement pump 2, thereby realize the exhaust of pressure lifting device.
To the first oil can 11, the brake fluid of annotating in the second oil can 12, make brake fluid be full of oil can, open the 3rd pneumatic ball valve 13, the 4th pneumatic ball valve 14, the 5th pneumatic ball valve 15, the 6th pneumatic ball valve 16, the 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve 27, the 11 pneumatic ball valve 33, and open exhaust metering pump 32, make brake fluid through the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers, hydraulic control unit (HCU) 19, metering pump 32 circulates, brake fluid by a period of time circulates takes away the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers, hydraulic control unit (HCU) 19 and be attached thereto the bubble in working line, then close the 11 pneumatic ball valve 33, then close again metering pump 32, thereby air in eliminating hydraulic plumbing system, so that pipeline volume rigidity reaches aforementioned (1) Plays.
The 3rd pneumatic ball valve 13, the 4th pneumatic ball valve 14, the 11 pneumatic ball valve 33, the 12 pneumatic ball valve 34 keeps closing, the first pneumatic ball valve 5, the second pneumatic ball valve 6, the 5th pneumatic ball valve 15, the 6th pneumatic ball valve 16, the 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve 27 is held open, reduction valve in hydraulic control unit (HCU) 19 is opened, and improve hydraulic control unit (HCU) 19 inlet pressures by pilot pressure lifting device, thereby make brake fluid be full of the accumulator in hydraulic control unit (HCU) 19.Now close reduction valve in hydraulic control unit (HCU) 19, open dump pump in hydraulic control unit (HCU) 19, the brake fluid that liquid is full of in the accumulator in hydraulic control unit (HCU) 19 pumps by hydraulic control unit (HCU) 19 filler openings.Because brake fluid is all pumped to the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers, promote to move after piston, now respectively by the first displacement transducer 9, the time inner carrier displacement of second displacement sensor 10 unit of measurement, thereby calculate the volume that interior hydraulic control unit (HCU) 19 of unit time pumps brake fluid, can represent hydraulic control unit (HCU) 19 pump dutys.By pressure lifting device, promote the first simulation master cylinder 7, the rear cavity pressure of the second simulation master cylinder 8, pressure can be passed to the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers by piston, and be passed to hydraulic control unit (HCU) 19 filler openings by working line, now test and can measure pump duty under different back pressures, change ambient temperature and can measure pump duty under different temperatures.
Keep the complete exhaust of pipeline, the tenth pneumatic ball valve the 33, the 11 pneumatic ball valve 34 keeps closing, the first pneumatic ball valve 5, the second pneumatic ball valve 5, the 3rd pneumatic ball valve 13, the 4th pneumatic ball valve 14, the 5th pneumatic ball valve 15, the 6th pneumatic ball valve 16, the 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve 27 are held open, and now the first oil can 11, the second oil can 12 are connected with hydraulic control unit (HCU) 19 filler openings and form open liquid level.Open suction valve and the dump pump of hydraulic control unit (HCU) 19.Hydraulic control unit (HCU) 19 pressurized state that has the initiative now, brake fluid in the first simulation master cylinder 7, the second simulation master cylinder 8 ante-chambers is hydraulically controlled unit (HCU) 19 and extracts to the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31, makes the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31 oil pressure increase.By the 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23, measure respectively the first hydraulic pressure steel cylinder 28, the second hydraulic pressure steel cylinder 29, the 3rd hydraulic pressure steel cylinder 30, the 4th hydraulic pressure steel cylinder 31 pressure-time curves, can obtain the active boost ability of hydraulic control unit (HCU) 19 pumps.Change ambient temperature and can measure the active boost ability of hydraulic control unit under different temperatures (HCU) 19 pumps.
The pressure-limit valve of hydraulic control unit (HCU) 19 is opened, and suction valve, pressure charging valve, reduction valve are closed.By process control machine, control the delivery pressure that improves pressure lifting device, thereby the front cavity pressure of the first simulation master cylinder 7, the second simulation master cylinder 8 is improved, by servo proportion 4 controls, maintain pressure constant within a period of time.By the 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23, monitor respectively hydraulic control unit (HCU) 19 first oil outlets, the second oil outlet, the 3rd oil outlet, the 4th oil outlet pressure.If four oil outlet a period of time internal pressures rise and to be all less than a certain amount ofly, as rising, 30s internal pressure is less than 0.5Mpa, can think the favorable sealing property of pressure charging valve.
Hydraulic control unit (HCU) 19 pressure-limit valves, pressure charging valve are opened, and suction valve, reduction valve are closed.By process control machine, control the delivery pressure that improves pressure lifting device, thereby make hydraulic control unit (HCU) 19 oil outlet pressure be elevated to certain value.Then hydraulic control unit (HCU) 19 pressure-limit valves, suction valve, reduction valve are closed, pressure charging valve is opened, and hydraulic control unit (HCU) 19 enters pressure-limit valve packing state.Open immediately the 12 pneumatic ball valve 34, remove the delivery pressure of pressure lifting device, now by the 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23, monitor respectively the first oil outlet, the second oil outlet, the 3rd oil outlet, the 4th oil outlet brake fluid pressure fall of hydraulic control unit (HCU) 19.If described four oil outlet pressure drop amplitudes are all less than certain value, as declining, 30s internal pressure is less than 0.5Mpa, can think that pressure-limit valve and reduction valve sealing are good.
After confirming that pressure-limit valve has good sealing property, hydraulic control unit (HCU) 19 pressure charging valves, reduction valve are opened to pressure-limit valve, suction valve closure.Cross process control machine and control the delivery pressure that improves pressure lifting device, high hydraulic brake fluid flows to respectively the first oil outlet, the second oil outlet, the 3rd oil outlet, the 4th oil outlet of hydraulic control unit (HCU) 19 by pressure-limit valve bypass one-way valve, make four oil outlet pressure rises.Open immediately the 12 pneumatic ball valve 34, remove the delivery pressure of pressure lifting device, now by the 3rd pressure transducer 20, the 4th pressure transducer 21, the 5th pressure transducer 22, the 6th pressure transducer 23, monitor respectively the first oil outlet, the second oil outlet, the 3rd oil outlet, the 4th oil outlet a period of time internal pressure fall of hydraulic control unit (HCU) 19.If described four oil outlet pressure drop amplitudes are all less than certain value, as declining, 30s internal pressure is less than 0.5Mpa, can think that pressure-limit valve and reduction valve sealing are good.
Hydraulic control unit (HCU) 19 pressure-limit valves are opened, and pressure charging valve, suction valve, reduction valve are closed.By process control machine, control the delivery pressure that improves pressure lifting device, thereby the first simulation master cylinder 7, the front cavity pressure of the second simulation master cylinder 8 are improved, by servo proportion 4 controls, maintain pressure constant within a period of time.Open immediately pressure charging valve.With pressure charging valve cut-in voltage signal, send constantly and corresponding hydraulic control unit (HCU) 19 oil outlet pressure signals start to increase constantly constantly as a token of, the two markers time difference is constantly that pressure charging valve is opened the response time.
By hydraulic control unit (HCU) 19 pressure charging valves in opening state.Close pressure charging valve.With pressure charging valve close after voltage signal sends constantly and spool is taken a seat, produce vibration signal the moment constantly as a token of, the time difference in the two markers moment is that pressure charging valve cuts out the response time.
Hydraulic control unit (HCU) 19 pressure-limit valves, pressure charging valve are opened, and suction valve, reduction valve are closed.By process control machine, control the delivery pressure that improves pressure lifting device, thereby the first simulation master cylinder 7, the front cavity pressure of the second simulation master cylinder 8 are improved.Close immediately pressure-limit valve, carry out pressure-limit valve pressurize.Open the 12 pneumatic ball valve 34, remove the delivery pressure of pressure lifting device.Then open reduction valve.With reduction valve cut-in voltage signal, send constantly and corresponding hydraulic control unit (HCU) 19 oil outlet pressure start to reduce constantly constantly as a token of, the two markers time difference is constantly that reduction valve is opened the response time.
By hydraulic control unit (HCU) 19 reduction valve in opening state.Close reduction valve.With reduction valve close after voltage signal sends constantly and spool is taken a seat, produce vibration signal the moment constantly as a token of, the time difference in the two markers moment is that reduction valve cuts out the response time.
The 7th pneumatic ball valve 24, the 8th pneumatic ball valve 25, the 9th pneumatic ball valve 26, the tenth pneumatic ball valve 27, stop up the oil outlet of hydraulic control unit (HCU) 19, improves as far as possible oil outlet volume rigidity.Hydraulic control unit (HCU) 19 pressure-limit valves, pressure charging valve, reduction valve are opened to suction valve closure.By process control machine, control the delivery pressure that improves pressure lifting device, thereby the first simulation master cylinder 7, the front cavity pressure of the second simulation master cylinder 8 are improved, make brake fluid be full of hydraulic control unit (HCU) 19 accumulators.Close pressure-controlled unit (HCU) 19 pressure-limit valves, pressure charging valve, reduction valve, suction valve, now brake fluid is sealed up for safekeeping in accumulator.Open immediately the 12 pneumatic ball valve 34, remove the delivery pressure of pressure lifting device, then open hydraulic control unit (HCU) 19 pressure-limit valves starting electrical machinery, brake fluid in accumulator is all passed through to hydraulic control unit (HCU) 19 filler openings to pump, enter respectively the first simulation master cylinder 7, the second simulation master cylinder 8, promotion the first simulation master cylinder 7, the second simulation master cylinder 8 pistons are moved to the left.By the first displacement transducer 9, second displacement sensor 10, can record the displacement that piston moves, thereby calculate the volume that pumps brake fluid, can think hydraulic control unit (HCU) 19 accumulator volumes.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354112.7A CN104179752B (en) | 2014-07-23 | 2014-07-23 | The Performance Test System of hydraulic control unit in a kind of brake system of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354112.7A CN104179752B (en) | 2014-07-23 | 2014-07-23 | The Performance Test System of hydraulic control unit in a kind of brake system of car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104179752A true CN104179752A (en) | 2014-12-03 |
| CN104179752B CN104179752B (en) | 2016-02-10 |
Family
ID=51961030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410354112.7A Expired - Fee Related CN104179752B (en) | 2014-07-23 | 2014-07-23 | The Performance Test System of hydraulic control unit in a kind of brake system of car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104179752B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938054A (en) * | 2016-07-08 | 2016-09-14 | 宁波赛福汽车制动有限公司 | Motorcycle anti-lock braking system endurance testing experiment table |
| CN107165891A (en) * | 2017-05-31 | 2017-09-15 | 天津英创汇智汽车技术有限公司 | Hydraulic control unit high-voltage performance detection method, apparatus and system in automobile ESC |
| CN107202683A (en) * | 2017-05-31 | 2017-09-26 | 天津英创汇智汽车技术有限公司 | Hydraulic control unit low-pressure performance detection method, device and system in automobile ESC |
| CN107356440A (en) * | 2017-09-04 | 2017-11-17 | 杭州沃镭智能科技股份有限公司 | ESC HCU assembly air pressure device for detecting performance |
| CN105938053B (en) * | 2016-07-08 | 2018-11-06 | 宁波赛福汽车制动有限公司 | Motorcycle ABS performance test experiment table |
| CN111089096A (en) * | 2019-12-18 | 2020-05-01 | 上海擎度汽车科技有限公司 | ESC hydraulic performance test method based on flow control |
| CN111879527A (en) * | 2020-08-04 | 2020-11-03 | 清华大学 | System and method for testing durability of hydraulic control unit in automobile braking system |
| CN112595523A (en) * | 2020-11-23 | 2021-04-02 | 一汽解放汽车有限公司 | PVT test system |
| CN115585174A (en) * | 2022-05-07 | 2023-01-10 | 北京英创汇智科技有限公司 | A Performance Test Bench for Hydraulic Unit of Automobile Electronic Control Braking System |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689178Y (en) * | 2003-01-15 | 2005-03-30 | 四川工业学院 | Testing experimental table for vehicle braking performance |
| DE102006014269A1 (en) * | 2006-03-28 | 2007-10-04 | Robert Bosch Gmbh | Hydraulic system`s functional test providing method for brake assembly of vehicle, involves measuring delivery rate of multi-piston pump, where multi-piston pump is tested at same time to check operability of individual pistons |
| CN101566527A (en) * | 2009-04-03 | 2009-10-28 | 清华大学 | Hydraulic control unit performance test station for stability control system in vehicle dynamics |
| CN101624048A (en) * | 2009-08-06 | 2010-01-13 | 清华大学 | Vehicle electromechanical hydraulic braking system |
| JP2010069991A (en) * | 2008-09-17 | 2010-04-02 | Advics Co Ltd | Brake fluid pressure control device |
| CN102602384A (en) * | 2012-03-27 | 2012-07-25 | 清华大学 | Distributed type electronic hydraulic braking system of automobile |
| WO2012167979A1 (en) * | 2011-06-08 | 2012-12-13 | Continental Teves Ag & Co. Ohg | Brake system for motor vehicles and method for operating a brake system |
-
2014
- 2014-07-23 CN CN201410354112.7A patent/CN104179752B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689178Y (en) * | 2003-01-15 | 2005-03-30 | 四川工业学院 | Testing experimental table for vehicle braking performance |
| DE102006014269A1 (en) * | 2006-03-28 | 2007-10-04 | Robert Bosch Gmbh | Hydraulic system`s functional test providing method for brake assembly of vehicle, involves measuring delivery rate of multi-piston pump, where multi-piston pump is tested at same time to check operability of individual pistons |
| JP2010069991A (en) * | 2008-09-17 | 2010-04-02 | Advics Co Ltd | Brake fluid pressure control device |
| CN101566527A (en) * | 2009-04-03 | 2009-10-28 | 清华大学 | Hydraulic control unit performance test station for stability control system in vehicle dynamics |
| CN101624048A (en) * | 2009-08-06 | 2010-01-13 | 清华大学 | Vehicle electromechanical hydraulic braking system |
| WO2012167979A1 (en) * | 2011-06-08 | 2012-12-13 | Continental Teves Ag & Co. Ohg | Brake system for motor vehicles and method for operating a brake system |
| CN102602384A (en) * | 2012-03-27 | 2012-07-25 | 清华大学 | Distributed type electronic hydraulic braking system of automobile |
Non-Patent Citations (1)
| Title |
|---|
| 单东升，等: "车身稳定控制液压控制单元性能试验台开发与试验", 《液压与气动》, no. 6, 30 June 2011 (2011-06-30), pages 51 - 54 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938054A (en) * | 2016-07-08 | 2016-09-14 | 宁波赛福汽车制动有限公司 | Motorcycle anti-lock braking system endurance testing experiment table |
| CN105938053B (en) * | 2016-07-08 | 2018-11-06 | 宁波赛福汽车制动有限公司 | Motorcycle ABS performance test experiment table |
| CN107165891A (en) * | 2017-05-31 | 2017-09-15 | 天津英创汇智汽车技术有限公司 | Hydraulic control unit high-voltage performance detection method, apparatus and system in automobile ESC |
| CN107202683A (en) * | 2017-05-31 | 2017-09-26 | 天津英创汇智汽车技术有限公司 | Hydraulic control unit low-pressure performance detection method, device and system in automobile ESC |
| CN107165891B (en) * | 2017-05-31 | 2018-09-18 | 天津英创汇智汽车技术有限公司 | Hydraulic control unit high-voltage performance detection method, apparatus and system in automobile ESC |
| CN107356440A (en) * | 2017-09-04 | 2017-11-17 | 杭州沃镭智能科技股份有限公司 | ESC HCU assembly air pressure device for detecting performance |
| CN111089096A (en) * | 2019-12-18 | 2020-05-01 | 上海擎度汽车科技有限公司 | ESC hydraulic performance test method based on flow control |
| CN111879527A (en) * | 2020-08-04 | 2020-11-03 | 清华大学 | System and method for testing durability of hydraulic control unit in automobile braking system |
| CN111879527B (en) * | 2020-08-04 | 2022-04-29 | 清华大学 | System and method for testing durability of hydraulic control unit in automobile braking system |
| CN112595523A (en) * | 2020-11-23 | 2021-04-02 | 一汽解放汽车有限公司 | PVT test system |
| CN115585174A (en) * | 2022-05-07 | 2023-01-10 | 北京英创汇智科技有限公司 | A Performance Test Bench for Hydraulic Unit of Automobile Electronic Control Braking System |
| CN115585174B (en) * | 2022-05-07 | 2025-06-10 | 北京英创汇智科技有限公司 | Performance test board for hydraulic unit of automobile electric control braking system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104179752B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104179752B (en) | The Performance Test System of hydraulic control unit in a kind of brake system of car | |
| CN104458276B (en) | Performance test method of hydraulic control unit of car brake system | |
| CN109357887A (en) | A kind of the engine bench test device and its application method of the braking of simulated automotive plateau | |
| CN101566527B (en) | Performance Test Bench for Hydraulic Control Unit of Automobile Dynamics Stability Control System | |
| CN103712787B (en) | Pressures cycle service life experiment system and method | |
| CN107023536A (en) | Engineering machinery hydraulic cylinder dynamic performance integrated test platform | |
| CN103076186B (en) | A kind of method of testing of novel ESP/ABS accumulator proving installation | |
| CN106124223A (en) | ABS ESC performance testing device and method | |
| CN104502116B (en) | Hydraulic analog test device and its system and method for testing | |
| CN101451893A (en) | Test system and test method for hydraulic cylinder with loading friction force characteristic | |
| CN103954431A (en) | Flow resistance measurement test system | |
| CN103939421A (en) | Fatigue test method and device used for hydraulic cylinder | |
| CN103047126B (en) | Method for testing ESP (electronic stability program) /ABS (anti-lock brake system) pumps | |
| CN201310595Y (en) | Hydraulic damping device | |
| CN209117336U (en) | A kind of Pneuamtic actuator for valve model machine load test stand | |
| CN207848070U (en) | A kind of automobile brake oil pipe testing machine | |
| CN102269673B (en) | Rapid hydrogen charging complete equipment and method based on gas drive pressurization technology | |
| CN103454092A (en) | Brake analog loading device | |
| CN203551288U (en) | Novel device for testing ESP/ABS (Electronic Stability Program/Anti-lock Brake System) energy accumulator | |
| CN105938054A (en) | Motorcycle anti-lock braking system endurance testing experiment table | |
| CN108223492A (en) | A kind of hydraulic linear motor element seal friction force and viscosity friction coefficient test system and method | |
| CN115061445A (en) | A test device and method for active pressure building capability of automotive ESC | |
| CN205898469U (en) | ABS ESC capability test device | |
| CN203412735U (en) | Novel testing device of ESP/ABS (electronic stability program)/(anti-locked braking system) pump | |
| CN104502117A (en) | ABS performance test apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 |