CN102133890A - Slope start-stop auxiliary safety system of motor vehicle - Google Patents
Slope start-stop auxiliary safety system of motor vehicle Download PDFInfo
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- CN102133890A CN102133890A CN2010101013034A CN201010101303A CN102133890A CN 102133890 A CN102133890 A CN 102133890A CN 2010101013034 A CN2010101013034 A CN 2010101013034A CN 201010101303 A CN201010101303 A CN 201010101303A CN 102133890 A CN102133890 A CN 102133890A
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Abstract
The invention relates to a slope start-stop auxiliary safety system of a motor vehicle. The system comprises a sensor, an electric control unit and a power-driven linear actuator, wherein the sensor is communicated connection with the electric control unit, and the power-driven linear actuator is connected with the other end of the electric control unit through a lead. Compared with the prior art, the invention has wide range of applications and convenience in mounting, provides safety auxiliary guarantee and realizes the vehicle start-stop auxiliary safety function through slope resistance pre-calibration and a corresponding start torque recognition control algorithm, thereby enhancing driving safety.
Description
Technical field
The present invention relates to a kind of supplementary security system, especially relate to a kind of self-propelled vehicle ramp start-stop supplementary security system.
Background technology
In the drive routine process, vehicle often need temporarily stop in the ramp and starting again.Manually keep off a car to existing, when vehicle is upwards started to walk in the ramp, pedal of clutch need be stepped on certain position, centre (also claiming " semi-linkage " position) to travel of clutch, adjusting control need be come according to the bearing load and the gradient of slope size of automobile in the semi-linkage position, that is to say, make pedal of clutch where mediate (be engine torque output size) need manually adjust according to actual conditions.Vehicle on the ramp to parking and starting to walk to depend on whether smoothly the proficient of chaufeur to power-transfer clutch, brake and throttle compounding practice.For skilled manual automobile driver, they rule of thumb can control the semi-linkage state preferably, make self-propelled vehicle gentle start on the slope.But for unskilled manual chaufeur, uphill starting then is difficult operative technique of grasping, if it is bad that the semi-linkage technology is grasped, when starting to walk, the automobile half way up the mountain just is easy to cause automobile slide car or flame-out, thereby cause vehicle and back vehicle to crash, even cause the accidental bodily injury of goers outside vehicle.The situation of slipping behind another recurrent car ramp is: forget when vehicle stops on the gentle slope to pull the hand brake, thereby cause slipping behind the vehicle traffic accident that meets accident.
Have only on the present domestic vehicle on some high-end riding and just be furnished with the ramp start assisting system, each producer mainly contains the call of ramp ancillary system: HHC (ramp ancillary system), HAC (vehicle control is played in the ramp), HAS (uphill starting supplementary controlled system), HDC (HDC) etc. are several.Though call differs, its radical function and principle are similar, are summarized as follows:
The main actuating unit of domestic present representative type half way up the mountain starting ancillary system mostly is hydraulic efficiency pressure system, and system realizes the uphill starting additional function by the disconnecting valve break-make of control between master brake cylinder and wheel wheel cylinder.The ramp ancillary system by the sensor detecting vehicle whether on the ramp, when vehicle during at uphill starting, chaufeur is stepped on the energising of brake pedal disconnecting valve, the system closing wheel cylinder is to the oil circuit of master cylinder direction, keep the pressure in the wheel wheel cylinder, promptly keep certain breaking force,, also can keep the vehicle short time to stop even this moment, pin left brake pedal.Thereby give the gear shift of chaufeur time enough and the pedal of stepping on the throttle, when power-transfer clutch is attached to a certain degree, disconnecting valve outage when the moment of torsion of its transmission can just overcome breakaway force, brake off is started to walk to realize car ramp rapidly.
Existing BAS (Brake Assist System) mostly can be in the blink behind the chaufeur loosen the brake (about 2 seconds) keep vehicle not slip the slope, by the of short duration system's brake latency of this section, reserve a few times in second to chaufeur, be absorbed in throttle-clutch engagement operation with the realization uphill starting, thereby the poor chaufeur of driving quality can be operated calmly.But there is following defective in existing BAS (Brake Assist System):
(1) the main prestowage of existing ramp start assisting system is on high-end Passenger motor vehicle.Do not dispose the ramp start assisting system on economical vehicle, the particularly heavily loaded commercial vehicle.Therefore popularity is not high at home for the ramp start assisting system.
(2) more existing ramp ancillary systems are based on electric control mechanical type automatic speed variator (AMT) technology, system need carry out accurate identification to breakaway force, the existing uphill starting ancillary system of part needs the chaufeur manual triggers in addition, thereby its range of use and function have limitation.
(3) existing ramp start assisting system must could be worked under the condition of vehicle operation (driving engine operation), and is flame-out if vehicle takes place in the uphill starting process, and then start assisting system can not provide extra anti-automatically back slide brake safe function.
Summary of the invention
Purpose of the present invention is exactly to provide the self-propelled vehicle ramp start-stop that a kind of range of use is wide, easy for installation, safety factor is high supplementary security system for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of self-propelled vehicle ramp start-stop supplementary security system, it is characterized in that, this system is made up of sensor, ECU (Electrical Control Unit) and electric linear actr, and described sensor and ECU (Electrical Control Unit) communicate to connect, and described electric linear actr is connected by lead with the other end of ECU (Electrical Control Unit).
Described sensor comprises ramp sensor, tachogen, throttle position switch, clutch sensor and limit sensors, and the sensor is used for the collection vehicle work state information.
Described ECU (Electrical Control Unit) is the core of control system, is made up of surface-mounted integrated circuit and control corresponding software that microprocessor module, power module, data memory module, input signal conditioning module, output driver module are formed.
Described electric linear actr comprises drive motor, the worm speed reducer structure, bearing and bearing seat, guide pin bushing, screw mandrel, pipe in the push rod, push rod, pipe link and integral type parking brake extension bar, described drive motor is connected through lead with ECU (Electrical Control Unit), described worm speed reducer structure one end connects drive motor, other end connection bearing and bearing seat, described guide pin bushing is connected with bearing and bearing seat, described screw mandrel is located at the bottom in the guide pin bushing, pipe is located at the inside of guide pin bushing in the described ejector sleeve, the pipe rear end connects push rod in this ejector sleeve, described pipe link is located at the rear end of push rod, and this pipe link is connected with the middle part of integral type parking brake extension bar.
Described integral type parking brake extension bar one end connects the parking brake pull bar, and the other end connects the brake cable pull at car side brake place.
Compared with prior art, the present invention has the following advantages:
(1) range of use of the present invention is wide, easy for installation.Not only can on economical manned vehicle, independently install additional, also can be applicable to commercial vehicle/comm..vehicle, as carriage of vehicles such as large and medium bus, lorries;
(2) the auxiliary guarantee of safety provided by the present invention need not the chaufeur manual triggers, also need not AMT system based on vehicle, but divide existing sensor signal by sensor that installs additional and vehicle upper, realize vehicle start-stop auxiliary security function by pre-demarcation of gradient resistance with corresponding starting moment of torsion identification control algorithm;
(3) no matter vehicle launch whether, the present invention realizes automatically in the time of can slipping that vehicle parks after car ramp takes place, thus the enhancing travel safety.For self-propelled vehicle provides extra ramp traffic safety guarantee.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1 is that drive motor, 2 is integral type parking brake extension bar for pipe link, 9 for push rod, 8 for pipe in the push rod, 7 for screw mandrel, 6 for guide pin bushing, 5 for bearing and bearing seat, 4 for worm speed reducer structure, 3 among the figure.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
A kind of self-propelled vehicle ramp start-stop supplementary security system, its structure as shown in Figure 1, this system is made up of sensor, ECU (Electrical Control Unit) and electric linear actr, sensor comprises ramp sensor, tachogen, throttle position switch, clutch sensor and limit sensors, and the sensor is used for the collection vehicle work state information.Sensor and ECU (Electrical Control Unit) communicate to connect.
ECU (Electrical Control Unit) (Electronic Control Unit, be called for short ECU) be the core of control system, by microprocessor module, power module, data memory module, the input signal conditioning module, surface-mounted integrated circuit and control corresponding software that the output driver module is formed are formed, it mainly acts on is that input is carried out computing to the various signals of sensor and master cock input, handle, judge the inclination of vehicle angle, the intention whether start and stop are arranged, accelerator pedal position, clutch pedal position and clutch engagement etc., then according to the reflection vehicle condition of being gathered, the electric signal of road conditions and driving intention is as the control decision foundation, according to designed control algorithm output control command, control relevant actuating unit and produce and the cooresponding action of control command, the automobile controlled system is realized fast, automatically ramp start-stop auxiliary security control accurately.The electric linear actr is connected by lead with the other end of ECU (Electrical Control Unit).
The electric linear actr comprises drive motor 1, worm speed reducer structure 2, bearing and bearing seat 3, guide pin bushing 4, screw mandrel 5, pipe 6 in the push rod, push rod 7, pipe link 8 and integral type parking brake extension bar 9, drive motor 1 is connected through lead with ECU (Electrical Control Unit), one end of worm speed reducer structure 2 connects drive motor 1, other end connection bearing and bearing seat 3, guide pin bushing 4 is connected with bearing and bearing seat 3, screw mandrel 5 is located at the bottom in the guide pin bushing 4, pipe 6 is located at the inside of guide pin bushing 4 in the ejector sleeve, pipe 6 is put into rear end connection push rod 7 in this ejector sleeve, pipe link 8 is located at the rear end of push rod 7, and this pipe link 8 is connected with the middle part of integral type parking brake extension bar 9.One end of integral type parking brake extension bar 9 connects the parking brake pull bar, and the other end connects the brake cable pull at car side brake place.
The principle of work of electric linear actr: drive motor 1 drives worm speed reducer structure 2 backs and slows down, driving screw mandrel 4 rotates, the motion that is in line of the rotation motion of motor, utilize the rotating of the positive and negative driving worm speed reducer of electrical motor structure to drive the expanding-contracting action of push rod; Drive the action of integral type parking brake extension bar 9 by the straight linear motion of push rod 7, thereby realize functions such as automatic parking brake, braking release, misoperation protection.
The design feature of integral type parking brake extension bar 9 is: when chaufeur pulling hand brake lever was carried out braking during standstill, brake cable pull was handled by the control of integral type parking brake extension bar by hand brake lever and is realized braking during standstill; When chaufeur slipped after the proper operation vehicle does not cause vehicle on the ramp, brake cable pull was handled the autobrake that realizes vehicle by pipe link by the control of integral type parking brake extension bar; And pipe link is handled by the electric linear actr of ECU (Electrical Control Unit) control.Therefore, can realize independently vehicle autobrake and manual parking braking, not produce and interfere with each other by integral type parking brake extension bar.
The characteristics of ramp start-stop supplementary security system control method are: when vehicle is started to walk, the breakaway force that vehicle is under the various gradients is carried out computational analysis on the ramp, draw breakaway force; , estimate and judge engine torque output in conjunction with stroke and speed signal and engine speed and Das Gaspedal stroke signal by power-transfer clutch; Vehicle is in breakaway force under the various ramps and moment of torsion output and makes the default arteries and veins spectrum of demarcating respectively and leave in the ECU internal memory as the ECU controlled variable, the pre-arteries and veins spectrum of demarcating can be guaranteed to guarantee that on suitable opportunity during brake off vehicle has enough power and overcomes breakaway force on the ramp.When vehicle in the ramp Parking and produce the back slide and may or take place under the situation that the back slips, system ECU will trigger electric actuator and implement braking during standstill when following condition is set up, bringing into play the auxiliary security braking function: (1) vehicle is anchored on the ramp; (2) brake pedal discharges; (3) the parking brake braking during standstill discharges (4) gear and is not in reverse gear.
From above control logic as can be seen, it is auxiliary that start-stop supplementary security system in ramp promptly can be used for uphill starting, also can be used for playing when vehicle meets accident the slide slope function of auxiliary security.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010101303 CN102133890B (en) | 2010-01-26 | 2010-01-26 | Slope start-stop auxiliary safety system of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010101303 CN102133890B (en) | 2010-01-26 | 2010-01-26 | Slope start-stop auxiliary safety system of motor vehicle |
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| Publication Number | Publication Date |
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| CN102133890A true CN102133890A (en) | 2011-07-27 |
| CN102133890B CN102133890B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010101303 Expired - Fee Related CN102133890B (en) | 2010-01-26 | 2010-01-26 | Slope start-stop auxiliary safety system of motor vehicle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556070A (en) * | 2012-01-16 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Automobile backward slip resistant device |
| CN104975901A (en) * | 2014-04-10 | 2015-10-14 | 上海柴油机股份有限公司 | Safety control device of engine retarder |
| CN111409607A (en) * | 2020-05-09 | 2020-07-14 | 中国人民解放军陆军装甲兵学院 | A high-speed tracked vehicle overtaking and parking device |
| CN111683844A (en) * | 2017-12-29 | 2020-09-18 | Zf主动安全美国股份公司 | Traction control rollback mitigation on asymmetric friction coefficient slopes |
| CN112124271A (en) * | 2020-09-27 | 2020-12-25 | 东风柳州汽车有限公司 | Electronic parking brake release control method |
| CN114407897A (en) * | 2022-01-20 | 2022-04-29 | 东风汽车股份有限公司 | Vehicle ramp auxiliary function trigger control method, recording medium and system |
| CN114901527A (en) * | 2019-12-10 | 2022-08-12 | 奔迪士商业运输系统公司 | Parking brake device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070090691A1 (en) * | 2005-10-21 | 2007-04-26 | Andrew Maskell | Brake Control System |
| CN101032960A (en) * | 2007-01-22 | 2007-09-12 | 余晓鹏 | Electric parking and braking device |
| CN101205970A (en) * | 2006-12-22 | 2008-06-25 | 比亚迪股份有限公司 | Control device and method for AMT vehicle sloping route starting |
| CN101391603A (en) * | 2008-10-27 | 2009-03-25 | 浙江亚太机电股份有限公司 | Electric-controlled unit for vehicle electric halt vehicle brake system |
| CN101537831A (en) * | 2009-04-13 | 2009-09-23 | 浙江亚太机电股份有限公司 | Control method of automobile electric control parking and start assisting by manual transmission and system thereof |
-
2010
- 2010-01-26 CN CN 201010101303 patent/CN102133890B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070090691A1 (en) * | 2005-10-21 | 2007-04-26 | Andrew Maskell | Brake Control System |
| CN101205970A (en) * | 2006-12-22 | 2008-06-25 | 比亚迪股份有限公司 | Control device and method for AMT vehicle sloping route starting |
| CN101032960A (en) * | 2007-01-22 | 2007-09-12 | 余晓鹏 | Electric parking and braking device |
| CN101391603A (en) * | 2008-10-27 | 2009-03-25 | 浙江亚太机电股份有限公司 | Electric-controlled unit for vehicle electric halt vehicle brake system |
| CN101537831A (en) * | 2009-04-13 | 2009-09-23 | 浙江亚太机电股份有限公司 | Control method of automobile electric control parking and start assisting by manual transmission and system thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556070A (en) * | 2012-01-16 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Automobile backward slip resistant device |
| CN104975901A (en) * | 2014-04-10 | 2015-10-14 | 上海柴油机股份有限公司 | Safety control device of engine retarder |
| CN111683844A (en) * | 2017-12-29 | 2020-09-18 | Zf主动安全美国股份公司 | Traction control rollback mitigation on asymmetric friction coefficient slopes |
| CN111683844B (en) * | 2017-12-29 | 2023-06-23 | Zf主动安全美国股份公司 | Traction Control Rollback Mitigation on Asymmetric Friction Coefficient Slopes |
| CN114901527A (en) * | 2019-12-10 | 2022-08-12 | 奔迪士商业运输系统公司 | Parking brake device |
| CN111409607A (en) * | 2020-05-09 | 2020-07-14 | 中国人民解放军陆军装甲兵学院 | A high-speed tracked vehicle overtaking and parking device |
| CN112124271A (en) * | 2020-09-27 | 2020-12-25 | 东风柳州汽车有限公司 | Electronic parking brake release control method |
| CN112124271B (en) * | 2020-09-27 | 2022-08-23 | 东风柳州汽车有限公司 | Electronic parking brake release control method |
| CN114407897A (en) * | 2022-01-20 | 2022-04-29 | 东风汽车股份有限公司 | Vehicle ramp auxiliary function trigger control method, recording medium and system |
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| Publication number | Publication date |
|---|---|
| CN102133890B (en) | 2013-06-12 |
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