CN103552600A - Electromobile power-driven hydraulic power steering control system and method - Google Patents
Electromobile power-driven hydraulic power steering control system and method Download PDFInfo
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- CN103552600A CN103552600A CN201310571070.8A CN201310571070A CN103552600A CN 103552600 A CN103552600 A CN 103552600A CN 201310571070 A CN201310571070 A CN 201310571070A CN 103552600 A CN103552600 A CN 103552600A
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Abstract
The invention relates to an electromobile power-driven hydraulic power steering control system and method. The vehicle state signal output ends of a brake pedal module, an accelerator pedal module and a gear selection module of the electromobile power-driven hydraulic power steering control system are connected with the vehicle state signal input end of an electromobile control unit; the electromobile speed computing information output end of an electromobile speed computing information acquisition module is connected with the electromobile speed computing information input end of the electromobile control unit; the control signal output end of the electromobile control unit is connected with the control end of a motor controller controlled by a power-driven hydraulic source; the electromobile control unit is used for analyzing the current speed, the gear state, the accelerator pedal state and the brake pedal state of the electromobile and sending a command that the power-driven hydraulic source is used for controlling the start/stop of a motor to the motor controller controlled by the power-driven hydraulic source. According to the invention, the intelligent start/stop of the power-driven hydraulic power steering control system is realized when an electromobile stops in the cases of traffic lights, stations and strong current electrification, and the energy consumption of the electromobile power-driven hydraulic power steering control system is remarkably reduced.
Description
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 is controlled motor and is continuous firing pattern, be that on vehicle one, forceful electric power starts working, (electrokinetic cell terminal voltage is forceful electric power to forceful electric power on vehicle, light current is vehicle-mounted 24V or 12V power supply) but when dead ship condition, still cannot realize the shutdown that motor is controlled in electric hydaulic source, thereby caused the waste of electric automobile energy.It should be noted that bus meets on traffic signal lamp, website forceful electric power every day and stop total accumulated time long (whole day was over 2 hours, electric hydaulic source is controlled motor and is added up during this period the nearly 2.5kwh of consuming electric power), so also to a certain degree reduced the flying power of electronlmobil.
Summary of the invention
The object of the invention is provides a kind of electronlmobil electric hydraulic power-assisted steering control system and control method for above-mentioned deficiency, and when this control system and control method can be in the situation that former car does not install extra means additional can be solved new forms of energy bus and met on traffic signal lamp, website that forceful electric power is stopped by judgement current vehicle speed and driver driving intention, the energy loss that motor is worked always and caused is not controlled in electric hydaulic source.
Electronlmobil electric hydraulic power-assisted steering control system of the present invention is to realize like this, comprise brake pedal module, acceleration pedal module, gear is selected module, electric machine controller is controlled in electric hydaulic source, control with electric hydaulic source the electric hydaulic source control motor that electric machine controller is connected, it is characterized in that: it also comprises car load control unit and speed of a motor vehicle calculating acquisition of information module, wherein, described brake pedal module, acceleration pedal module selects the Vehicular status signal mouth of module to be all connected the Vehicular status signal input end of car load control unit with gear, the speed of a motor vehicle is calculated the speed of a motor vehicle of acquisition of information module and is calculated the speed of a motor vehicle calculating information input terminal that information output connects car load control unit, the control signal mouth of car load control unit connects the control end that electric machine controller is controlled in electric hydaulic source, described car load control unit is used for analyzing electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and to electric hydaulic source, control electric machine controller and send the instruction that motor start-stop is controlled in electric hydaulic source.
It is main drive motor control unit that the described speed of a motor vehicle is calculated acquisition of information module, described main drive motor control unit is used for obtaining main drive motor rotating speed, and main drive motor rotating speed is input to car load control unit, car load 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 end rotating speed of transmission shaft sensor that the described speed of a motor vehicle is calculated acquisition of information module, described change speed gear box front end rotating speed of transmission shaft sensor is used for obtaining change speed gear box front end rotating speed of transmission shaft, and change speed gear box front end rotating speed of transmission shaft is input to car load control unit, car load control unit utilizes change speed gear box front end rotating speed of transmission shaft to calculate the real-time speed of a motor vehicle of electronlmobil.
An electric hydraulic power-assisted steering control method, is characterized in that, it comprises the steps:
Step 1: the in the situation that of electronlmobil switch connection power output shelves, car load control unit calculates according to the speed of a motor vehicle the real-time speed of a motor vehicle of speed of a motor vehicle calculating acquisition of information electronlmobil that acquisition of information module sends, car load control unit obtains the real-time braking mode information of electronlmobil according to brake pedal module, car load control unit obtains the real-time acceleration operational status information of electronlmobil according to acceleration pedal module, and car load control unit selects module to obtain the real-time range state information of electronlmobil according to gear;
Step 2: whether the real-time speed of a motor vehicle of electronlmobil of obtaining in car load control unit determining step 1 is greater than zero, if the real-time speed of a motor vehicle of electronlmobil is greater than zero, be that electronlmobil is when motoring condition, car load control unit is controlled motor controller controls electric hydaulic source by electric hydaulic source and is controlled motor continuous firing, if the real-time speed of a motor vehicle of electronlmobil equals zero, electronlmobil enters step 3 when halted state;
Step 3: when the real-time speed of a motor vehicle of electronlmobil equals zero, car load control unit reads electronlmobil range state information now, whether judgement electronlmobil gear is now in neutral or parking shelves, when electronlmobil gear is during 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, car load control unit is controlled electric machine controller and is sent 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 when the brake pedal of driver operation brake pedal module or the acceleration pedal of acceleration pedal module, car load control unit is controlled electric machine controller and is sent motor operating instruction to electric hydaulic source, control electric hydaulic source and control motor continuous firing A second, if A after second car load control unit perceive driver and cancelled the operation to the acceleration pedal of the brake pedal of brake pedal module or acceleration pedal module, car load control unit is controlled electric machine controller and is sent motor stopping instruction to electric hydaulic source, controlling electric hydaulic source control motor quits work, if A after second car load control unit perceive driver still at the brake pedal of operation brake pedal module or the acceleration pedal of acceleration pedal module, car load control unit continues to send motor operating instruction to electric hydaulic source control electric machine controller, control electric hydaulic source and control the next A of motor continuous firing second.
Be 2～4 seconds the A second described in step 3.
A described in step 3 is preferably 3 seconds second.
The present invention is by calculating acquisition of information module access electronlmobil electric hydraulic power-assisted steering control system by car load control unit and the speed of a motor vehicle, by car load control unit, analyze electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and according to the control logic of recording in said method, to electric hydaulic source, control electric machine controller and send the instruction that motor start-stop is controlled in electric hydaulic source.Realize the intelligent start and stop of electric hydraulic power-assisted steering system when electronlmobil is met traffic signal lamp, website and the stop of upper forceful electric power, significantly reduced the energy resource consumption of electronlmobil electric hydraulic power-assisted steering control system, improved the course continuation mileage of electronlmobil.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
In figure: 1,---brake pedal module, 2------gear is selected module, 4, and---electric machine controller, 5 is controlled in electric hydaulic source, and---acceleration pedal module, 3 is controlled motor, 6---car load control unit, the 7---speed of a motor vehicle and is calculated acquisition of information module by electric hydaulic source.
The specific embodiment
Below in conjunction with drawings and Examples, further illustrate the present invention.
Embodiment: electronlmobil electric hydraulic power-assisted steering control system as shown in Figure 1, comprise brake pedal module 1, acceleration pedal module 2, gear is selected module 3, electric machine controller 4 is controlled in electric hydaulic source, control with electric hydaulic source the electric hydaulic source control motor 5 that electric machine controller 4 is connected, it also comprises car load control unit 6 and speed of a motor vehicle calculating acquisition of information module 7, wherein, described brake pedal module 1, acceleration pedal module 2 selects the Vehicular status signal mouth of module 3 to be all connected the Vehicular status signal input end of car load control unit 6 with gear, the speed of a motor vehicle is calculated the speed of a motor vehicle of acquisition of information module 7 and is calculated the speed of a motor vehicle calculating information input terminal that information output connects car load control unit 6, the control signal mouth of car load control unit 6 connects the control end that electric machine controller 4 is controlled in electric hydaulic source, described car load control unit 6 is for analyzing electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and to electric hydaulic source, control electric machine controller 4 and send the instruction that motor 5 start-stops are controlled in electric hydaulic source.The control signal mouth that electric machine controller 4 is controlled in above-mentioned electric hydaulic source connects the control signal input end that motor 5 is controlled in electric hydaulic source.
Above-mentioned brake pedal module 1, acceleration pedal module 2, gear select module 3, electric hydaulic source to control electric machine controller 4, electric hydaulic source is controlled motor 5, car load control unit 6 and speed of a motor vehicle calculating acquisition of information module 7 and is the existing component part of electronlmobil, the present invention need to not increase any module in implementation procedure in electronlmobil, has guaranteed the reliability of electronlmobil.
In technique scheme, it is main drive motor control unit that the described speed of a motor vehicle is calculated acquisition of information module 7, described main drive motor control unit is used for obtaining main drive motor rotating speed, and main drive motor rotating speed is input to car load control unit 6, car load 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 end rotating speed of transmission shaft sensor that the described speed of a motor vehicle is calculated acquisition of information module 7, described change speed gear box front end rotating speed of transmission shaft sensor is used for obtaining change speed gear box front end rotating speed of transmission shaft, and change speed gear box front end rotating speed of transmission shaft is input to car load control unit 6, car load control unit 6 utilizes change speed gear box front end rotating speed of transmission shaft to calculate the real-time speed of a motor vehicle of electronlmobil.
The signal that the above-mentioned speed of a motor vehicle is calculated between acquisition of information module 7 and car load control unit 6 passes through CAN(Controller Area Network, controller local area network) bus or signal sampling rigid line be transmitted.When above-mentioned speed of a motor vehicle calculating acquisition of information module 7 is main drive motor control unit, the signal between main drive motor control unit and car load control unit 6 passes through CAN bus transfer and completes; When speed of a motor vehicle calculating acquisition of information module 7 is change speed gear box front end rotating speed of transmission shaft sensor, the signal between change speed gear box front end rotating speed of transmission shaft sensor and car load control unit 6 passes through signal sampling rigid line and is transmitted.
An electric hydraulic power-assisted steering control method, it comprises the steps:
Step 1: the in the situation that of forceful electric power on electronlmobil (being electronlmobil switch connection power output shelves), car load control unit 6 calculates according to the speed of a motor vehicle speed of a motor vehicle that acquisition of information 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 acquisition of information module 7 sends is main drive motor rotating speed or change speed gear box front end rotating speed of transmission shaft, car load control unit 6 calculates the real-time speed of a motor vehicle of electronlmobil according to existing conventional conversion formula), car load control unit 6 obtains the real-time braking mode information of electronlmobil according to brake pedal module 1, car load control unit 6 obtains the real-time acceleration operational status information of electronlmobil according to acceleration pedal module 2, car load control unit 6 selects module 3 to obtain the real-time range state information of electronlmobil according to gear,
Step 2: whether the real-time speed of a motor vehicle of electronlmobil of obtaining in car load control unit 6 determining steps 1 is greater than zero, if the real-time speed of a motor vehicle of electronlmobil is greater than zero, be that electronlmobil is when motoring condition, car load control unit 6 is controlled electric machine controller 4 by electric hydaulic source and is controlled electric hydaulic source control motor 5 continuous firings, if the real-time speed of a motor vehicle of electronlmobil equals zero, electronlmobil (now corresponding electronlmobil is in waiting for traffic lights or the state that enters the station) when halted state enters step 3;
Step 3: when the real-time speed of a motor vehicle of electronlmobil equals zero, car load control unit 6 reads electronlmobil range state information now, whether judgement electronlmobil gear is now in neutral or parking shelves, when electronlmobil gear is during 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, car load control unit 6 is controlled electric machine controller 4 and is sent 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 when the brake pedal of driver operation (trampling) brake pedal module 1 or the acceleration pedal of acceleration pedal module 2, car load control unit 6 is controlled electric machine controller 4 and is sent motor operating instruction to electric hydaulic source, control electric hydaulic source and control 5 continuous firing A seconds of motor, if A after second car load control unit 6 perceive driver and cancelled the operation (trampling) to the acceleration pedal of the brake pedal of brake pedal module 1 or acceleration pedal module 2, car load control unit 6 is controlled electric machine controller 4 and is sent motor stopping instruction to electric hydaulic source, controlling electric hydaulic source control motor 5 quits work, if A after second car load control unit 6 perceive driver still at the brake pedal of operation (trampling) brake pedal module 1 or the acceleration pedal of acceleration pedal module 2, car load control unit 6 continues to send motor operating instruction to electric hydaulic source control electric machine controller 4, controlling electric hydaulic source controls the next A of motor 5 continuous firings (this process is a cycle detection deterministic process second, every A, monitor 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, car load control unit 6 is controlled electric hydaulic source and is controlled motor 5 maintenance operations, if driver has cancelled the operation (trampling) to the acceleration pedal of the brake pedal of brake pedal module 1 or acceleration pedal module 2, it is out of service that car load control unit 6 is controlled electric hydaulic source control motor 5).
The method that above-mentioned electronlmobil electric hydraulic power-assisted steering is controlled can reduce the energy consumption of electronlmobil under the prerequisite that guarantees electronlmobil driving safety.
In technique scheme, be 2～4 seconds the A second described in step 3, is preferably 3 seconds.The judgement of above-mentioned time is set is when preventing that the speed of a motor vehicle from being zero, meeting driver original place beats the demand that direction has power-assisted on the one hand, the electric hydraulic power-assisted steering system power consumption while reducing 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 driver's driving intention to brake pedal module 1, acceleration pedal module 2 and gear, and car load control unit 6 rationally controls according to driver's driving intention the start and stop that motor 5 is controlled in electric hydaulic source.Compare in existing electronlmobil electric hydraulic power-assisted steering control system and need only forceful electric power on electronlmobil, no matter when motor 5 is controlled in electric hydaulic source all keeps the control logic of work, and the present invention has obviously reduced the energy consumption of electronlmobil.
Understanding power steering control logic of the present invention that can clear and definite by following chart:
Claims (6)
1. an electronlmobil electric hydraulic power-assisted steering control system, comprise brake pedal module (1), acceleration pedal module (2), gear is selected module (3), electric machine controller (4) is controlled in electric hydaulic source, control with electric hydaulic source the electric hydaulic source control motor (5) that electric machine controller (4) is connected, it is characterized in that: it also comprises car load control unit (6) and speed of a motor vehicle calculating acquisition of information module (7), wherein, described brake pedal module (1), acceleration pedal module (2) selects the Vehicular status signal mouth of module (3) to be all connected the Vehicular status signal input end of car load control unit (6) with gear, the speed of a motor vehicle is calculated the speed of a motor vehicle of acquisition of information module (7) and is calculated the speed of a motor vehicle calculating information input terminal that information output connects car load control unit (6), the control signal mouth of car load control unit (6) connects the control end that electric machine controller (4) is controlled in electric hydaulic source, described car load control unit (6) is for analyzing electronlmobil current vehicle speed, range state, acceleration pedal state and brake pedal status, and to electric hydaulic source, control electric machine controller (4) and send the instruction that motor (5) start-stop is controlled in electric hydaulic source.
2. electronlmobil electric hydraulic power-assisted steering control system according to claim 1, it is characterized in that: the described speed of a motor vehicle is calculated acquisition of information module (7) for main drive motor control unit, described main drive motor control unit is used for obtaining main drive motor rotating speed, and main drive motor rotating speed is input to car load control unit (6), car load 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 system according to claim 1, it is characterized in that: the described speed of a motor vehicle is calculated acquisition of information module (7) for change speed gear box front end rotating speed of transmission shaft sensor, described change speed gear box front end rotating speed of transmission shaft sensor is used for obtaining change speed gear box front end rotating speed of transmission shaft, and change speed gear box front end rotating speed of transmission shaft is input to car load control unit (6), car load control unit (6) utilizes change speed gear box front end rotating speed of transmission shaft to calculate the real-time speed of a motor vehicle of electronlmobil.
4. an electronlmobil electric hydraulic power-assisted steering control method, is characterized in that, it comprises the steps:
Step 1: the in the situation that of electronlmobil switch connection power output shelves, car load control unit (6) calculates according to the speed of a motor vehicle the real-time speed of a motor vehicle of speed of a motor vehicle calculating acquisition of information electronlmobil that acquisition of information module (7) sends, car load control unit (6) obtains the real-time braking mode information of electronlmobil according to brake pedal module (1), car load control unit (6) obtains the real-time acceleration operational status information of electronlmobil according to acceleration pedal module (2), and car load control unit (6) selects module (3) to obtain the real-time range state information of electronlmobil according to gear;
Step 2: whether the real-time speed of a motor vehicle of electronlmobil of obtaining in car load control unit (6) determining step 1 is greater than zero, if the real-time speed of a motor vehicle of electronlmobil is greater than zero, be that electronlmobil is when motoring condition, car load control unit (6) is controlled electric machine controller (4) by electric hydaulic source and is controlled electric hydaulic source control motor (5) continuous firing, if the real-time speed of a motor vehicle of electronlmobil equals zero, electronlmobil enters step 3 when halted state;
Step 3: when the real-time speed of a motor vehicle of electronlmobil equals zero, car load control unit (6) reads electronlmobil range state information now, whether judgement electronlmobil gear is now in neutral or parking shelves, when electronlmobil gear is during 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), car load control unit (6) is controlled electric machine controller (4) and is sent 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 brake pedal module (1) or acceleration pedal module (2), car load control unit (6) is controlled electric machine controller (4) and is sent motor operating instruction to electric hydaulic source, control electric hydaulic source and control motor (5) continuous firing A second, if A after second car load control unit (6) perceive driver and cancelled the operation to the acceleration pedal of the brake pedal of brake pedal module (1) or acceleration pedal module (2), car load control unit (6) is controlled electric machine controller (4) and is sent motor stopping instruction to electric hydaulic source, controlling electric hydaulic source control motor (5) quits work, if A after second car load control unit (6) perceive driver still operation brake pedal module (1) brake pedal or the acceleration pedal of acceleration pedal module (2), car load control unit (6) continues to send motor operating instruction to electric hydaulic source control electric machine controller (4), control electric hydaulic source and control the next A of motor (5) continuous firing second.
5. electronlmobil electric hydraulic power-assisted steering control method according to claim 4, is characterized in that: be 2～4 seconds the A second described in step 3.
6. electronlmobil electric hydraulic power-assisted steering control method according to claim 5, is characterized in that: be 3 seconds the A second described in step 3.
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| CN201310571070.8A CN103552600B (en) | 2013-11-15 | 2013-11-15 | Electronlmobil electric hydraulic power-assisted steering control system and control method |
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| CN201310571070.8A CN103552600B (en) | 2013-11-15 | 2013-11-15 | Electronlmobil electric hydraulic power-assisted steering control system and control method |
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| CN105946966A (en) * | 2016-05-26 | 2016-09-21 | 奇瑞汽车股份有限公司 | Vehicle EPS (Electric Power Steering System) |
| 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 |
| CN106494258A (en) * | 2016-09-18 | 2017-03-15 | 东风襄阳旅行车有限公司 | Electric automobile vacuum servo and motor composite braking system and brake control method |
| CN108290551A (en) * | 2015-10-15 | 2018-07-17 | 宾堡集团 | System is supplied and replaced for the battery pack in the electric vehicle of commercial use |
| CN108944741A (en) * | 2018-07-27 | 2018-12-07 | 北京新能源汽车股份有限公司 | A kind of electric signal output method and automobile |
| CN109774784A (en) * | 2017-11-14 | 2019-05-21 | 河南森源重工有限公司 | A kind of electric vehicle and its steering system and steering system control method |
| CN109941341A (en) * | 2017-12-20 | 2019-06-28 | 河南森源重工有限公司 | A kind of control method and vehicle of electric hydaulic boost pump |
| 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 |
| CN112277914A (en) * | 2020-09-30 | 2021-01-29 | 北汽福田汽车股份有限公司 | Control method and device of hydraulic power-assisted brake system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| 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 |
| CN112277914A (en) * | 2020-09-30 | 2021-01-29 | 北汽福田汽车股份有限公司 | Control method and device of hydraulic power-assisted brake system |
| CN112277914B (en) * | 2020-09-30 | 2022-02-08 | 北汽福田汽车股份有限公司 | Control method and device of hydraulic power-assisted brake system |
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