CN104121100A - Composite flameout switch system for vehicle - Google Patents

Abstract

A vehicle composite flameout switch system mainly uses independent connection lines between the start switch, the brake contact switch and the electronic control unit, that is, the brake contact switch and the start switch are respectively connected through a first voltage conversion circuit and a first voltage conversion circuit. The two voltage conversion circuits are electrically connected to the electronic control unit, and the electronic control unit has a built-in start control mode and a flameout control mode. When the electronic control unit detects that the engine is not operating, and the brake contact switch and the start switch are simultaneously turned on. When the engine is turned on, the engine will be started. When the electronic control unit detects that the engine has started and the start switch is activated, it will drive the engine to stall and suspend the vehicle's ignition and fuel injection procedures until the start switch is triggered again. , the electronic control unit resumes the ignition and fuel injection procedures of the vehicle.

Description

Vehicle composite flameout switch system

technical field

The present invention relates to a switch system, in particular to a vehicle composite flameout switch system used for injection vehicles. the

Background technique

Generally, the start and stop of a motorcycle is mostly by turning the lock of the motorcycle with a key. Press the starter switch 11, and simultaneously press the brake handle switch 13 with the left hand in order to avoid the explosion, so that the battery 12 is turned on, and then the excitation relay 14 is turned on, and the starter motor 15 is activated to drive the engine to rotate. In addition, when the engine is about to be turned off during idling, the rider needs to reverse the key to turn off the start switch 11 and cut off the power supply. Therefore, for the motorcycle rider, both hands must move back and forth between the motorcycle handle and the lock during the process of engine stalling and starting, which is quite inconvenient in operation. Except for driving the engine to start, it has almost no effect at ordinary times. the

In addition, some motorcycles that have only been on the market in recent years use the electronic control unit (Electronic Control Unit, ECU for short) of the injection engine to detect the handlebars of the motorcycle according to the engine speed, vehicle speed, and handlebar sensors. Whether it is not held and other messages to judge whether the engine should be turned off. Specifically, as shown in FIG. 2 , in the idle stop system, the start switch 21 is connected to the ECU 23 through a signal line 22 , and then the ECU 23 controls the starter motor 25 through the connected drive circuit 24 . Although this method can judge and help the rider to complete the automatic flameout action, for the motorcycle rider, both hands must also move back and forth between the motorcycle handle and the lock during the process of engine flameout and starting, that is, Then press the start switch 21 with the right hand, and start the brake handle switch 26 simultaneously with the left hand, which is still inconvenient in operation. Furthermore, although the flameout command is controlled by the ECU23, when driving in an urban area, frequent parking is required, resulting in frequent starting and flameout, which easily reduces the service life of the starter motor 25 and the battery 27. And it is worth noting that, except that the start switch 21 is used to drive the engine to start at the beginning, it has no effect at ordinary times. the

Contents of the invention

Therefore, the purpose of the present invention is to provide a vehicle composite flameout switch system, mainly to enable the starter switch to have the function of starting the engine when the engine is not activated, and to start the switch when the engine is activated. It can have the function of turning off the engine, and the rider can judge whether to turn off the engine according to his own needs. the

Therefore, the composite flameout switch system for a new type of vehicle includes an engine, a start switch, and a handle brake, and the vehicle composite flameout switch system includes a starting unit, a first voltage conversion circuit, and a second voltage conversion circuit. circuit, a drive circuit, and an electronic control unit. The starter unit includes a starter motor for driving the engine, a battery electrically connected to the starter motor, a switch electrically connected to the starter motor and the battery, and a brake controlled by the handlebar Brake contact switch. The first voltage conversion circuit is electrically connected to the brake contact switch. The second voltage converting circuit is electrically connected with the start switch. The driving circuit is electrically connected with the switching switch. The electronic control unit is electrically connected with the first voltage conversion circuit, the second voltage conversion circuit, and the driving circuit. The electronic control unit has a built-in start control mode and a flameout control mode. When the electronic control unit detects When the engine is not actuated and the brake contact switch and the start switch are turned on at the same time, the start control mode will be executed. At this time, the voltage signal of the start switch is stepped down by the second voltage conversion circuit and then transmitted to the An electronic control unit, the electronic control unit will trigger the switching switch to be turned on, the battery will output power, and then start the engine. In addition, when the electronic control unit detects that the engine has been activated and the start switch is activated, it will Executing the flameout control mode drives the engine to flameout and suspends the ignition and fuel injection procedures of the vehicle until the start switch is triggered again, and the electronic control unit resumes the ignition and fuel injection procedures of the vehicle. the

The effect of the present invention adopts the independent connection line between this starting switch, this braking contact switch and this electronic control unit, makes this starting switch have the function of starting the engine, and under the situation that the engine has been actuated, the starting switch can It has the function of turning off the engine, allowing the rider to judge whether to stop the engine according to the needs. In addition, it can be applied to various current mass-produced models without modifying the appearance of the car body, so it has good versatility. the

Description of drawings

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein:

Figure 1 is a schematic diagram illustrating the architecture of a general motorcycle starting system;

Fig. 2 is a schematic diagram illustrating the architecture of an idle stop system of a general motorcycle;

Fig. 3 is a schematic diagram illustrating a preferred embodiment of the novel vehicle composite flameout switch system; and

FIG. 4 is a schematic diagram to assist in explaining FIG. 3 . the

Detailed ways

Referring to Fig. 3, 4, be the preferred embodiment of this novel vehicle composite flameout switch system, this vehicle comprises an engine 31, a start switch 32, an accelerator 33, and a handle brake part (not shown). The vehicle composite ignition switch system includes a starting unit 41 , a first voltage converting circuit 42 , a second voltage converting circuit 43 , a driving circuit 44 , and an electronic control unit 45 . the

The starter unit 41 includes a starter motor 411 for driving the engine 31, a battery 412 electrically connected to the starter motor 411, a switch 413 electrically connected to the starter motor 411 and the battery 412, and a And the brake contact switch 414 controlled by the handle brake part. the

The first voltage conversion circuit 42 is electrically connected to the brake contact switch 414 . The second voltage conversion circuit 43 is electrically connected to the start switch 32 . Since the brake contact switch 414 and the starting switch 32 are turned on, the voltage is 12V (volts), which is converted to 5V by the first voltage conversion circuit 42 and the second voltage conversion circuit 42 respectively, and then input to the electronic control unit 45. . In addition, the driving circuit 44 is electrically connected to the switching switch 413 . the

The electronic control unit 45 has a pin DO, a pin DI_1 and a pin DI_2, the first voltage conversion circuit 42, the second voltage conversion circuit 43 and the drive circuit 44 are respectively connected to the electronic control unit 45. The pin DI_1, the pin DI_2, and the pin DO are electrically connected. In addition, the electronic control unit 45 is also electrically connected to the throttle 33 , and the electronic control unit 45 has a default value of the engine speed and a default value of the throttle opening. In addition, the electronic control unit 45 has a built-in start control mode, a flameout control mode, and an automatic start mode, and the electronic control unit 45 selects to execute according to whether the engine 31 is activated and the start switch 32 is activated. The start control mode or the flameout control mode, in addition, the electronic control unit 45 selects to execute the start control mode or the automatic start mode according to whether the brake contact switch 414 and the start switch 32 are activated simultaneously. Furthermore, the electronic control unit 45 can be a central processing unit or a microprocessor controller. the

It is particularly noted that the electronic control unit 45 can judge whether the engine 31 is activated by detecting the speed of the engine 31, or it can also determine whether the engine 31 is activated according to the opening degree of the accelerator 33 of the vehicle, or simultaneously according to the speed of the engine 31 and the speed of the accelerator 33. Opening, or other sensing methods to judge. the

The vehicle composite ignition switch system also includes an engine speed detector 46 electrically connected with the electronic control unit 45 and used for detecting the rotational speed of the engine 31, and an engine speed detector 46 electrically connected with the electronic control unit 45 and having A timer 47 for a time setting value. Wherein, in this embodiment, the time setting value is set to 5 seconds, but it is not limited thereto, and the setting value can also be changed according to actual needs. the

In use, when the electronic control unit 45 detects the rotational speed of the engine 31 through the engine speed detector 46, if the measured rotational speed of the engine 31 is zero, it means that the engine 31 is not activated, and the electronic The control unit 45 also judges whether the engine 31 is activated by detecting the opening of the accelerator 33 . Details will be given later. the

When the electronic control unit 45 detects the engine 31 speed according to the engine speed detector 46 when it is less than the default value of the engine speed, it can judge that the engine 31 is not activated. function, that is, if the brake contact switch 414 and the start switch 32 are turned on at the same time, the electronic control unit 45 will execute the start control mode, driving the voltage signal of the start switch 32 to drop through the second voltage conversion circuit 43 The electronic control unit 45 will trigger the switching switch 413 to be turned on, the battery 412 will output power, and then start the engine 31. At this time, the start switch 32 is converted to have the function of shutting down the engine 31. function. the

If only have this start switch 32 to start conduction again, this electronic control unit 45 can carry out this automatic start mode, this moment based on considering that engine 31 abnormality can't start too long, if can consume electricity all the time under the automatic start mode continuously, easy Cause the battery 412 to be out of power, so under this mode, the electronic control unit 45 will control the timer 47 to start counting the time setting value. Before the timing expires, when the speed of the engine 31 is greater than or equal to the default value, the electronic control unit 45 will judge that the engine 31 is in the active state, and then control the switch 413 to turn off, but if the speed of the engine 31 is not greater than or equal to the default value of the engine speed, the electronic control unit 45 will Judging that the engine 31 is in an inactive state, when the timing expires, the engine 31 is still inactive, and the electronic control unit 45 will stop performing the automatic start mode. At this time, the start switch 32 also has the function of starting the engine 31 , if you want to continue to start again, you need to press the start switch 32 again to re-operate. the

Furthermore, during the operation of the engine 411, when the start switch 32 is pressed again, the voltage signal after the conduction is passed to the electronic control unit 45 after being stepped down by the second voltage conversion circuit 43, and the electronic The control unit 45 controls the engine 31 to be turned off. In this case, the rider only needs to press the start switch 32 again, or make the brake contact switch 414 and the start switch 32 all conduction at the same time, or after turning the accelerator 33 to a certain degree of opening, the electronic The control unit 45 executes the start-up control mode to drive the engine 31 to operate. the

In particular, in order to prevent the rider from accidentally pressing the start switch 32 for a long time, the system may be judged to be turned off immediately after starting, or it may be judged to be started immediately after turning off the fire. After the action, the timer 47 is controlled by the electronic control unit 45 to carry out time delay timing. Before the timing expires, the electronic control unit 45 will not judge, or after the start or flameout control completes an action, it needs to be released. After turning on the start switch 32 and pressing it again, the electronic control unit 45 will continue to make judgments, so as to avoid malfunctions. In addition, considering that the start switch 32 may be touched by mistake during the riding process, under safety considerations, the electronic control unit 45 can be additionally set according to whether the throttle 33 needs to be lower than the set opening degree or the engine 31 speed needs to be lower than the set opening degree. Constant rotating speed, just can control engine 31 and carry out flameout action. the

To sum up, the composite flameout switch system for vehicles of the present invention can make the start switch 32 a general start switch when the engine 31 is stopped by the above-mentioned structural design, that is, retain the existing start function, and allow those who are used to the past operation mode The rider can adapt immediately, and when the engine 31 is running, it also has the function of a flameout switch, so that the rider only needs to press the start switch 32 again when the vehicle needs to stop for a long time. That is, the engine can be turned off immediately, and it can be started immediately with the same gesture, which makes the whole starting operation more convenient. Because the system of the present invention is controlled by the electronic control unit 45, it has a one-touch function, that is, when the handle brake (not shown) is pressed, only the start switch 32 needs to be pressed, and there is no need to wait for the engine 31 to start , the system automatically judges that the engine 31 has started and disconnects the switch 413 . the

In addition, the system of the present invention also provides a semi-automatic idle stop, allowing the user to press the start switch 32 to control the engine 31 to stop, and turn the accelerator 33 to quickly start driving, which is different from the general idle stop system design. In addition, the system of the present invention is applicable to the exterior configuration of any current mass-produced vehicle, and the vehicle body components do not need to be molded separately, only the main wiring and the 45 pins of the electronic control unit need to be changed. Furthermore, the switch signal of the start switch 32 is judged by the electronic control unit 45, and the limits such as the speed of the engine 31 or the speed of the vehicle and the opening of the throttle 33 can be used to prevent the start switch 32 from being accidentally touched during driving, causing the engine 31 to stall. Even if the engine 31 is accidentally stalled at a low speed, the vehicle can be restarted immediately by turning the accelerator 33 . Therefore really can reach the purpose of the present invention. the

But the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention with this, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification, All still belong to the scope that the patent of the present invention covers. the

【Symbol Description】

31 engine

32 start switch

33 Throttle

41 start unit

411 starter motor

412 battery

413 toggle switch

414 Brake contact switch

42 The first voltage conversion circuit

43 Second voltage conversion circuit

44 drive circuit

45 electronic control unit

46 Engine Speed Detector

47 Timer

DO pin

DI_1 pin

DI_2 pin. the

Claims (6)

1. a vehicle combined type flameout switch system, this vehicle comprises an engine, an enable switch, and a handgrip Braking piece, this vehicle combined type flameout switch system comprises:

One start unit, comprise one for drive this engine starting motor, one and the battery, that is electrically connected of this starting motor be electrically connected the diverter switch of this starting motor and this battery and a brake contact switch that controlled by this handgrip Braking piece;

One first voltage conversion circuit, is electrically connected with this brake contact switch;

One second voltage change-over circuit, is electrically connected with this enable switch;

One drive circuit, is electrically connected with this diverter switch; And

One electronic control unit, with this first voltage conversion circuit, this second voltage change-over circuit, this drive circuit is electrically connected, in this electronic control unit, have a startup control mode, an and flame-out control mode, when this electronic control unit detects the not start of this engine, and during the conducting simultaneously of this brake contact switch and this enable switch, can carry out this and start control mode, now the voltage signal of this enable switch is passed to this electronic control unit after this second voltage change-over circuit step-down is processed, this electronic control unit can trigger this diverter switch conducting, this battery output power, and then start this engine, in addition, when this electronic control unit detects this engine start and this enable switch has been activated, can carry out this flame-out control mode, order about igniting and oil spout program that this is cut the engine and ends this vehicle, until this enable switch is when be again triggered, this electronic control unit recovers to start igniting and the oil spout program of this vehicle.

2. vehicle combined type flameout switch system as claimed in claim 1, wherein, this diverter switch is relay.

3. vehicle combined type flameout switch system as claimed in claim 2, also comprising one is electrically connected with this electronic control unit and in order to detect the engine speed sensor of the rotating speed of this engine, this electronic control unit has an engine speed default value, this electronic control unit is whether the rotating speed of this engine and the comparative result of this engine speed default value according to this engine speed sensor, detected judge the start of this engine, when the rotating speed of this engine is more than or equal to this engine speed default value, this electronic control unit judges that this engine is in actuator state.

4. vehicle combined type flameout switch system as claimed in claim 3, also comprise one and be electrically connected and have the timer of a time setting value with this electronic control unit, in addition, this electronic control unit has an automatic start-up mode in also, when this electronic control unit detects the not start of this engine, when this enable switch is activated and this brake contact switch is not activated, this electronic control unit can be carried out this automatic start-up mode, control the timing that this timer starts to carry out this time setting value, when if timing expires, the start not yet of this engine, this electronic control unit can stop carrying out this automatic start-up mode, now again press this enable switch, this electronic control unit just can be restarted engine again to operate, in addition, this timer not yet timing at the expiration, and this electronic control unit detects the rotating speed of this engine while being more than or equal to this engine speed default value, this electronic control unit can judge this engine in actuator state and control this diverter switch and disconnects.

5. vehicle combined type flameout switch system as claimed in claim 4, wherein, this vehicle also comprises a throttle, this electronic control unit and this throttle are electrically connected, this electronic control unit also has an accelerator open degree default value, when this electronic control unit detects this engine not during start, by rotating this throttle, while making the aperture of this throttle reach this accelerator open degree default value, this electronic control unit also can be carried out this automatic start-up mode.

6. vehicle combined type flameout switch system as claimed in claim 5, wherein, this electronic control unit is central processing unit (CPU) or microprocessor controller.