CN103552600B - Electronlmobil electric hydraulic power-assisted steering control system and control method - Google Patents

Electronlmobil electric hydraulic power-assisted steering control system and control method Download PDF

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Publication number
CN103552600B
CN103552600B CN201310571070.8A CN201310571070A CN103552600B CN 103552600 B CN103552600 B CN 103552600B CN 201310571070 A CN201310571070 A CN 201310571070A CN 103552600 B CN103552600 B CN 103552600B
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electronlmobil
control unit
full
motor
vehicle
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CN201310571070.8A
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CN103552600A (en
Inventor
何江华
李大威
肖俊
宫文体
刘俊
王贵山
邹亮明
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Dongfeng Xiangyang Touring Car Co Ltd
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Dongfeng Xiangyang Touring Car Co Ltd
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Abstract

The present invention relates to a kind of electronlmobil electric hydraulic power-assisted steering control system and control method, its brake pedal module, acceleration pedal module and gear select the Vehicular status signal mouth of module to be all connected the Vehicular status signal input end of full-vehicle control unit, the speed of a motor vehicle that the speed of a motor vehicle calculates the speed of a motor vehicle calculating information output connection full-vehicle control unit of data obtaining module calculates information input terminal, the control signal mouth of full-vehicle control unit connects the control end that electric hydaulic source controls electric machine controller, full-vehicle control unit is for analyzing electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and the instruction that electric machine controller sends the start-stop of electric hydaulic source control motor is controlled to electric hydaulic source.Present invention achieves the intelligent start/stop of electric hydraulic power-assisted steering system when electronlmobil meets traffic signal lamp, website and upper forceful electric power are stopped, significantly reduce the energy resource consumption of electronlmobil electric hydraulic power-assisted steering control system.

Description

Electronlmobil electric hydraulic power-assisted steering control system and control method
Technical field
The present invention relates to car load field of engineering technology, specifically electronlmobil electric hydraulic power-assisted steering control system and control method.
Background technology
Current new forms of energy bus major part all adopts electric hydaulic source as servo-steering propulsion source (fuel oil bus generally adopts driving engine output hydraulic pressure as power steering propulsion source), hydraulic pressure is set up by the work of an individual motor in this electric hydaulic source, the electric hydaulic source of current new forms of energy bus controls motor and is continuous firing pattern, namely on vehicle one, namely forceful electric power starts working, when forceful electric power on vehicle, (electrokinetic cell terminal voltage is forceful electric power, light current is vehicle-mounted 24V or 12V power supply) but when being in dead ship condition, still cannot realize the shutdown that electric hydaulic source controls motor, thus cause the waste of electric automobile energy.It should be noted that bus to be met forceful electric power on traffic signal lamp, website every day and stopped total accumulated time longer (whole day was more than 2 hours, electric hydaulic source controls the motor accumulative nearly 2.5kwh of consuming electric power during this period), so also to a certain degree reduce the flying power of electronlmobil.
Summary of the invention
The object of the invention is to provide a kind of electronlmobil electric hydraulic power-assisted steering control system and control method for above-mentioned deficiency, this control system and control method can when former car does not install extra means additional by judging that current vehicle speed and driver driving intention can solve control motor in electric hydaulic source when new forms of energy bus meets that on traffic signal lamp, website, forceful electric power is stopped and to work the energy loss caused always.
Electronlmobil electric hydraulic power-assisted steering control system of the present invention realizes like this, comprise brake pedal module, acceleration pedal module, gear selects module, electric hydaulic source controls electric machine controller, control with electric hydaulic source the electric hydaulic source that electric machine controller is connected and control motor, it is characterized in that: it also comprises full-vehicle control unit and the speed of a motor vehicle calculates data obtaining module, wherein, described brake pedal module, acceleration pedal module and gear select the Vehicular status signal mouth of module to be all connected the Vehicular status signal input end of full-vehicle control unit, the speed of a motor vehicle that the speed of a motor vehicle calculates the speed of a motor vehicle calculating information output connection full-vehicle control unit of data obtaining module calculates information input terminal, the control signal mouth of full-vehicle control unit connects the control end that electric hydaulic source controls electric machine controller, described full-vehicle control unit is for analyzing electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and the instruction that electric machine controller sends the start-stop of electric hydaulic source control motor is controlled to electric hydaulic source.
It is main drive motor control unit that the described speed of a motor vehicle calculates data obtaining module, described main drive motor control unit is for obtaining main drive motor rotating speed, and main drive motor rotating speed is input to full-vehicle control unit, full-vehicle control unit utilizes main drive motor revolution counter to calculate the real-time speed of a motor vehicle of electronlmobil.
It is change speed gear box front drive axle tachogen that the described speed of a motor vehicle calculates data obtaining module, described change speed gear box front drive axle tachogen is for obtaining change speed gear box front drive axle rotating speed, and change speed gear box front drive axle rotating speed is input to full-vehicle control unit, full-vehicle control unit utilizes change speed gear box front drive axle revolution counter to calculate the real-time speed of a motor vehicle of electronlmobil.
A kind of electronlmobil electric hydraulic power-assisted steering control method, it is characterized in that, it comprises the steps:
Step 1: when electronlmobil switch connection Power output shelves, the speed of a motor vehicle that full-vehicle control unit calculates data obtaining module transmission according to the speed of a motor vehicle calculates the real-time speed of a motor vehicle of acquisition of information electronlmobil, full-vehicle control unit obtains the real-time braking mode information of electronlmobil according to brake pedal module, full-vehicle control unit obtains the real-time acceleration operational status information of electronlmobil according to acceleration pedal module, and full-vehicle control unit selects module to obtain the real-time range state information of electronlmobil according to gear;
Step 2: whether the speed of a motor vehicle that in full-vehicle control unit judges step 1, the electronlmobil of acquisition is real-time is greater than zero, if the real-time speed of a motor vehicle of electronlmobil is greater than zero, namely when electronlmobil is in motoring condition, full-vehicle control unit controls motor controller controls electric hydaulic source by electric hydaulic source and controls motor continuous firing, if the real-time speed of a motor vehicle of electronlmobil equals zero, when namely electronlmobil is in halted state, enter step 3;
Step 3: when the speed of a motor vehicle that electronlmobil is real-time equals zero, full-vehicle control unit reads electronlmobil range state information now, judge whether electronlmobil gear is now in neutral or parking shelves, when electronlmobil gear is in neutral or parking shelves, no matter whether driver operates the brake pedal of brake pedal module or the acceleration pedal of acceleration pedal module, full-vehicle control unit controls electric machine controller and sends motor stopping instruction to electric hydaulic source, control electric hydaulic source control motor and quit work, when electronlmobil gear is in D Drive or reverse, and during the acceleration pedal of the brake pedal of driver operation brake pedal module or acceleration pedal module, full-vehicle control unit controls electric machine controller and sends motor operating instruction to electric hydaulic source, control electric hydaulic source and control motor continuous firing A second, if full-vehicle control unit perceives driver and has cancelled operation to the brake pedal of brake pedal module or the acceleration pedal of acceleration pedal module after A second, then full-vehicle control unit controls electric machine controller and sends motor stopping instruction to electric hydaulic source, control electric hydaulic source control motor to quit work, if full-vehicle control unit perceives driver still at the brake pedal of operation brake pedal module or the acceleration pedal of acceleration pedal module after A second, then full-vehicle control unit continues to send motor operating instruction to electric hydaulic source control electric machine controller, control electric hydaulic source and control motor continuous firing next A second.
A second described in step 3 is 2 ~ 4 seconds.
A described in step 3 is preferably 3 seconds second.
The present invention is by calculating data obtaining module access electronlmobil electric hydraulic power-assisted steering control system by full-vehicle control unit and the speed of a motor vehicle, by full-vehicle control element analysis electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and control to electric hydaulic source the instruction that electric machine controller sends the start-stop of electric hydaulic source control motor according to the control logic recorded in said method.Achieve the intelligent start/stop of electric hydraulic power-assisted steering system when electronlmobil meets traffic signal lamp, website and upper forceful electric power are stopped, significantly reduce the energy resource consumption of electronlmobil electric hydraulic power-assisted steering control system, improve the course continuation mileage of electronlmobil.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
In figure: 1,---------gear selects module, 4, and---electric hydaulic source controls electric machine controller, 5, and---electric hydaulic source controls motor, 6---full-vehicle control unit, the 7---speed of a motor vehicle and calculates data obtaining module acceleration pedal module, 3 brake pedal module, 2.
Detailed description of the invention
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment: electronlmobil electric hydraulic power-assisted steering control system as shown in Figure 1, comprise brake pedal module 1, acceleration pedal module 2, gear selects module 3, electric hydaulic source controls electric machine controller 4, control with electric hydaulic source the electric hydaulic source that electric machine controller 4 is connected and control motor 5, it also comprises full-vehicle control unit 6 and the speed of a motor vehicle calculates data obtaining module 7, wherein, described brake pedal module 1, acceleration pedal module 2 and gear select the Vehicular status signal mouth of module 3 to be all connected the Vehicular status signal input end of full-vehicle control unit 6, the speed of a motor vehicle that the speed of a motor vehicle calculates the speed of a motor vehicle calculating information output connection full-vehicle control unit 6 of data obtaining module 7 calculates information input terminal, the control signal mouth of full-vehicle control unit 6 connects the control end that electric hydaulic source controls electric machine controller 4, described full-vehicle control unit 6 is for analyzing electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and the instruction that electric machine controller 4 sends the start-stop of electric hydaulic source control motor 5 is controlled to electric hydaulic source.The control signal mouth that above-mentioned electric hydaulic source controls electric machine controller 4 connects the control signal input end that electric hydaulic source controls motor 5.
Above-mentioned brake pedal module 1, acceleration pedal module 2, gear select module 3, electric hydaulic source controls electric machine controller 4, electric hydaulic source controls motor 5, full-vehicle control unit 6 and speed of a motor vehicle calculating data obtaining module 7 and is the existing component part of electronlmobil, the present invention does not need to increase any module in electronlmobil in implementation procedure, ensure that the reliability of electronlmobil.
In technique scheme, it is main drive motor control unit that the described speed of a motor vehicle calculates data obtaining module 7, described main drive motor control unit is for obtaining main drive motor rotating speed, and main drive motor rotating speed is input to full-vehicle control unit 6, full-vehicle control unit 6 utilizes main drive motor revolution counter to calculate the real-time speed of a motor vehicle of electronlmobil.
In technique scheme, it can also be change speed gear box front drive axle tachogen that the described speed of a motor vehicle calculates data obtaining module 7, described change speed gear box front drive axle tachogen is for obtaining change speed gear box front drive axle rotating speed, and change speed gear box front drive axle rotating speed is input to full-vehicle control unit 6, full-vehicle control unit 6 utilizes change speed gear box front drive axle revolution counter to calculate the real-time speed of a motor vehicle of electronlmobil.
The above-mentioned speed of a motor vehicle calculates signal transmission between data obtaining module 7 and full-vehicle control unit 6 by CAN(ControllerAreaNetwork, controller local area network) bus or signal sampling hard-wire transfer complete.When above-mentioned speed of a motor vehicle calculating data obtaining module 7 is main drive motor control unit, the signal transmission between main drive motor control unit and full-vehicle control unit 6 is transmitted by CAN; When speed of a motor vehicle calculating data obtaining module 7 is change speed gear box front drive axle tachogen, the signal transmission between change speed gear box front drive axle tachogen and full-vehicle control unit 6 is completed by signal sampling hard-wire transfer.
A kind of electronlmobil electric hydraulic power-assisted steering control method, it comprises the steps:
Step 1: on electronlmobil forceful electric power (i.e. electronlmobil switch connection Power output shelves), full-vehicle control unit 6 calculates according to the speed of a motor vehicle speed of a motor vehicle that data obtaining module 7 sends and calculates the real-time speed of a motor vehicle of acquisition of information electronlmobil (what the speed of a motor vehicle calculated that data obtaining module 7 sends is main drive motor rotating speed or change speed gear box front drive axle rotating speed, full-vehicle control unit 6 calculates the real-time speed of a motor vehicle of electronlmobil according to existing conventional conversion formula), full-vehicle control unit 6 obtains the real-time braking mode information of electronlmobil according to brake pedal module 1, full-vehicle control unit 6 obtains the real-time acceleration operational status information of electronlmobil according to acceleration pedal module 2, full-vehicle control unit 6 selects module 3 to obtain the real-time range state information of electronlmobil according to gear,
Step 2: whether the speed of a motor vehicle that in full-vehicle control unit 6 determining step 1, the electronlmobil of acquisition is real-time is greater than zero, if the real-time speed of a motor vehicle of electronlmobil is greater than zero, namely when electronlmobil is in motoring condition, full-vehicle control unit 6 controls electric machine controller 4 by electric hydaulic source and controls electric hydaulic source control motor 5 continuous firing, if the real-time speed of a motor vehicle of electronlmobil equals zero, when namely electronlmobil is in halted state, (now corresponding electronlmobil is in and waits for traffic lights or the state that enters the station) enters step 3;
Step 3: when the speed of a motor vehicle that electronlmobil is real-time equals zero, full-vehicle control unit 6 reads electronlmobil range state information now, judge whether electronlmobil gear is now in neutral or parking shelves, when electronlmobil gear is in neutral or parking shelves, no matter whether driver operates the brake pedal of (trampling) brake pedal module 1 or the acceleration pedal of acceleration pedal module 2, full-vehicle control unit 6 controls electric machine controller 4 and sends motor stopping instruction to electric hydaulic source, control electric hydaulic source control motor 5 and quit work; when electronlmobil gear is in D Drive or reverse, and during the acceleration pedal of the brake pedal of driver operation (trampling) brake pedal module 1 or acceleration pedal module 2, full-vehicle control unit 6 controls electric machine controller 4 and sends motor operating instruction to electric hydaulic source, control electric hydaulic source and control motor 5 continuous firing A second, if full-vehicle control unit 6 perceives driver and has cancelled operation (trampling) to the brake pedal of brake pedal module 1 or the acceleration pedal of acceleration pedal module 2 after A second, then full-vehicle control unit 6 controls electric machine controller 4 and sends motor stopping instruction to electric hydaulic source, control electric hydaulic source control motor 5 to quit work, if full-vehicle control unit 6 perceives driver still at the brake pedal of operation (trampling) brake pedal module 1 or the acceleration pedal of acceleration pedal module 2 after A second, then full-vehicle control unit 6 continues to send motor operating instruction to electric hydaulic source control electric machine controller 4, control electric hydaulic source to control motor 5 continuous firing next A (this process is a cycle detection deterministic process second, namely monitor every A and judge that whether driver is at the brake pedal of operation (trampling) brake pedal module 1 or the acceleration pedal of acceleration pedal module 2 second, if driver is still at the brake pedal of operation brake pedal module 1 or the acceleration pedal of acceleration pedal module 2, then full-vehicle control unit 6 controls electric hydaulic source and controls motor 5 maintenance operation, if driver has cancelled the operation (trampling) to the brake pedal of brake pedal module 1 or the acceleration pedal of acceleration pedal module 2, then full-vehicle control unit 6 control electric hydaulic source control motor 5 out of service).
The method that above-mentioned electronlmobil electric hydraulic power-assisted steering controls can reduce the energy consumption of electronlmobil under the prerequisite ensureing electronlmobil driving safety.
In technique scheme, the A second described in step 3 is 2 ~ 4 seconds, is preferably 3 seconds.Arrange the above-mentioned time when judging as preventing the speed of a motor vehicle from being zero, meeting driver original place beats the demand that there is power-assisted in direction on the one hand, reduces electric hydraulic power-assisted steering system power consumption during long-time parking on the other hand after driving intention is cancelled.
In technique scheme, driver selects the associative operation of module 3 to represent the driving intention of driver to brake pedal module 1, acceleration pedal module 2 and gear, and full-vehicle control unit 6 controls the start and stop of motor 5 according to the driving intention conservative control electric hydaulic source of driver.As long as to compare in existing electronlmobil electric hydraulic power-assisted steering control system forceful electric power on electronlmobil, no matter when electric hydaulic source controls the control logic that motor 5 all keeps work, present invention significantly reduces the energy consumption of electronlmobil.
Can the understanding power steering control logic of the present invention of clear and definite by following chart:

Claims (5)

1. the method utilizing electronlmobil electric hydraulic power-assisted steering control system to carry out the control of electronlmobil electric hydraulic power-assisted steering, described electronlmobil electric hydraulic power-assisted steering control system comprises brake pedal module (1), acceleration pedal module (2), gear selects module (3), electric hydaulic source controls electric machine controller (4), control with electric hydaulic source the electric hydaulic source that electric machine controller (4) is connected and control motor (5), it also comprises full-vehicle control unit (6) and the speed of a motor vehicle calculates data obtaining module (7), wherein, described brake pedal module (1), acceleration pedal module (2) and gear select the Vehicular status signal mouth of module (3) to be all connected the Vehicular status signal input end of full-vehicle control unit (6), the speed of a motor vehicle that the speed of a motor vehicle calculates speed of a motor vehicle calculating information output connection full-vehicle control unit (6) of data obtaining module (7) calculates information input terminal, the control signal mouth of full-vehicle control unit (6) connects the control end that electric hydaulic source controls electric machine controller (4), described full-vehicle control unit (6) is for analyzing electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and the instruction that electric machine controller (4) sends control motor (5) start-stop of electric hydaulic source is controlled to electric hydaulic source,
It is characterized in that, described electronlmobil electric hydraulic power-assisted steering control method, comprises the steps:
Step 1: when electronlmobil switch connection Power output shelves, full-vehicle control unit (6) calculates the real-time speed of a motor vehicle of acquisition of information electronlmobil according to the speed of a motor vehicle that speed of a motor vehicle calculating data obtaining module (7) sends, full-vehicle control unit (6) obtains the real-time braking mode information of electronlmobil according to brake pedal module (1), full-vehicle control unit (6) obtains the real-time acceleration operational status information of electronlmobil according to acceleration pedal module (2), full-vehicle control unit (6) selects module (3) to obtain the real-time range state information of electronlmobil according to gear,
Step 2: whether the speed of a motor vehicle that in full-vehicle control unit (6) determining step 1, the electronlmobil of acquisition is real-time is greater than zero, if the real-time speed of a motor vehicle of electronlmobil is greater than zero, namely when electronlmobil is in motoring condition, full-vehicle control unit (6) controls electric machine controller (4) by electric hydaulic source and controls electric hydaulic source control motor (5) continuous firing, if the real-time speed of a motor vehicle of electronlmobil equals zero, when namely electronlmobil is in halted state, enter step 3;
Step 3: when the speed of a motor vehicle that electronlmobil is real-time equals zero, full-vehicle control unit (6) reads electronlmobil range state information now, judge whether electronlmobil gear is now in neutral or parking shelves, when electronlmobil gear is in neutral or parking shelves, no matter whether driver operates the brake pedal of brake pedal module (1) or the acceleration pedal of acceleration pedal module (2), full-vehicle control unit (6) controls electric machine controller (4) and sends motor stopping instruction to electric hydaulic source, control electric hydaulic source control motor (5) to quit work, when electronlmobil gear is in D Drive or reverse, and during the acceleration pedal of the brake pedal of driver operation brake pedal module (1) or acceleration pedal module (2), full-vehicle control unit (6) controls electric machine controller (4) and sends motor operating instruction to electric hydaulic source, control electric hydaulic source and control motor (5) continuous firing A second, if full-vehicle control unit (6) perceives driver and has cancelled operation to the brake pedal of brake pedal module (1) or the acceleration pedal of acceleration pedal module (2) after A second, then full-vehicle control unit (6) controls electric machine controller (4) and sends motor stopping instruction to electric hydaulic source, control electric hydaulic source control motor (5) to quit work, if full-vehicle control unit (6) perceives driver still at the brake pedal of operation brake pedal module (1) or the acceleration pedal of acceleration pedal module (2) after A second, then full-vehicle control unit (6) continues to send motor operating instruction to electric hydaulic source control electric machine controller (4), control electric hydaulic source and control motor (5) continuous firing next A second.
2. electronlmobil electric hydraulic power-assisted steering control method according to claim 1, it is characterized in that: it is main drive motor control unit that the described speed of a motor vehicle calculates data obtaining module (7), described main drive motor control unit is for obtaining main drive motor rotating speed, and main drive motor rotating speed is input to full-vehicle control unit (6), full-vehicle control unit (6) utilizes main drive motor revolution counter to calculate the real-time speed of a motor vehicle of electronlmobil.
3. electronlmobil electric hydraulic power-assisted steering control method according to claim 1, it is characterized in that: it is change speed gear box front drive axle tachogen that the described speed of a motor vehicle calculates data obtaining module (7), described change speed gear box front drive axle tachogen is for obtaining change speed gear box front drive axle rotating speed, and change speed gear box front drive axle rotating speed is input to full-vehicle control unit (6), full-vehicle control unit (6) utilizes change speed gear box front drive axle revolution counter to calculate the real-time speed of a motor vehicle of electronlmobil.
4. electronlmobil electric hydraulic power-assisted steering control method according to claim 1, is characterized in that: the A second described in step 3 is 2 ~ 4 seconds.
5. electronlmobil electric hydraulic power-assisted steering control method according to claim 1, is characterized in that: the A second described in step 3 is 3 seconds.
CN201310571070.8A 2013-11-15 2013-11-15 Electronlmobil electric hydraulic power-assisted steering control system and control method Expired - Fee Related CN103552600B (en)

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CN106314531A (en) * 2015-07-05 2017-01-11 深圳市沃特玛电池有限公司 Energy-saving control method of electro-hydraulic power steering pump
MX368015B (en) * 2015-10-15 2019-09-13 Grupo Bimbo Sab De Cv System for supplying and exchanging a battery bank in an electric vehicle for commercial use.
CN105946966A (en) * 2016-05-26 2016-09-21 奇瑞汽车股份有限公司 Vehicle EPS (Electric Power Steering System)
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CN108944741B (en) * 2018-07-27 2020-08-04 北京新能源汽车股份有限公司 Electric signal output method and automobile
CN111605614A (en) * 2019-02-26 2020-09-01 郑州宇通客车股份有限公司 Enabling control method and device for electro-hydraulic power steering system
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