CN105946966A - Vehicle EPS (Electric Power Steering System) - Google Patents
Vehicle EPS (Electric Power Steering System) Download PDFInfo
- Publication number
- CN105946966A CN105946966A CN201610355166.4A CN201610355166A CN105946966A CN 105946966 A CN105946966 A CN 105946966A CN 201610355166 A CN201610355166 A CN 201610355166A CN 105946966 A CN105946966 A CN 105946966A
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- China
- Prior art keywords
- eps
- signal
- status signal
- control method
- assisted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000005611 electricity Effects 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- 238000005183 dynamical system Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention discloses a vehicle EPS (Electric Power Steering System), which comprises an EPS body, wherein the EPS body receives an engine state signal or an engine rotating speed signal; and an EPS work condition control method aiming at the configuration of a start and stop state signal, a hybrid state signal or an electric vehicle state signal is configured. The vehicle EPS has the advantages that a unified control method is used for dealing with different power and configurations; the EPS body can maintain unified signals at each configuration; in addition, the steering assisting power can be provided in the running process; only all node signals need to be received; when any one condition is met, the assisting power is provided; and the universality of the EPS body is improved.
Description
Technical field
The present invention relates to automobile chassis electric powered steering field.
Background technology
Along with introducing and the variation of car load dynamical system of dynamical system new technique, and electric powered steering system
The universality of system (EPS).The car load of different dynamic total or new technique does not produce for the demand of EPS power-assisted
Difference, and may i.e. be suitable for transmission with a car and always be also adopted by the new techniques such as start and stop, and also new forms of energy move
The possibility of total configuration, this is accomplished by the EPS different for different vehicle designs, adds design and be fabricated to
This.
Summary of the invention
The technical problem to be solved is the vehicle electric steering realizing a kind of highly versatile.
To achieve these goals, the technical solution used in the present invention is: vehicle electric steering, including
EPS, described EPS receive engine status signal or engine rotational speed signal, and are configured with for joining start and stop
Status signal, mixed dynamic status signal or the EPS operating condition control method of electric vehicle state signal.
EPS operating condition control method for described start and stop status signal: receive start and stop status signal at EPS
In signals below, EPS helps to try hard to keep and holds offer power-assisted, and signal includes: start and stop shut down, needs by starting
Machine starts, automatically starting, starting state, shut down.
EPS operating condition control method for described mixed dynamic status signal: receive mixed dynamic status signal at EPS
In signals below, EPS helps to try hard to keep and holds offer power-assisted, and signal includes: request stop.
EPS operating condition control method for described electric vehicle state signal: receive electric vehicle state at EPS
The signals below of signal, EPS helps to try hard to keep and holds offer power-assisted, and signal includes: start.
EPS operating condition control method for described engine status signal: receive engine condition at EPS
The signals below of signal, EPS helps to try hard to keep and holds offer power-assisted, and signal includes: start.
EPS operating condition control method for described engine rotational speed signal: receive engine speed at EPS
The signals below of signal, EPS helps to try hard to keep and holds offer power-assisted, and signal includes: rotating speed is more than setting value.
Described EPS connects BCM.
The present invention tackles different dynamic summation by unified control method and configures, and EPS may be used in various configurations
To keep signal unified, and power steering can be provided under steam, only need to receive all of the above node letter
Number, when one of any condition meets, it is provided that power-assisted, improve the versatility of ESP.
Accompanying drawing explanation
The content expressed every width accompanying drawing in description of the invention below is briefly described:
Fig. 1 start stop system network;
Fig. 2 hybrid dynamic system network;
Fig. 3 electric vehicle system network.
Detailed description of the invention
For any project, before configuration does not determines, distribute start and stop status signal (SSMStatus), mix and move
Status signal (HCU_EMS_StopReq), electric vehicle state signal (READYLightSts) node, EPS
Receive engine status signal (enginests) or engine rotational speed signal (enginespd) and more than
Signal.The duty of arbitrary signal can make EPS provide power-assisted.
As above table, receives any one value in above signal and meets requirement, then EPS provides power-assisted.The most electronic
Steering (EPS) can complete generalization definition at initial stage of development, and follow-up increasing is joined, new technique introduces, all
It is not required to again develop software.Decrease overlapping development work, improve EPS software phase lock loop.
Specifically, electric power steering (EPS) is on conventional gasoline machine, owing to power consumption is relatively big, typically
Only the most just providing power steering, the state i.e. receiving enginests is on or engine
Power-assisted is provided during rotating speed >=500rpm, but in the vehicle being equipped with start and stop configuration, due to Jie of start stop system
Entering, vehicle is engine misses when parking, and at this moment traditional E PS i.e. can lose power-assisted, by above-mentioned setting,
By corner change in torque wake up electromotor up, or receive start and stop status signal power-assisted be persistently provided.If but
There is no above-mentioned setting, the complaint of hard steering when turning to non helping hand then can produce parking.For second filial generation start and stop,
System definition vehicle is sliding or in moderating process, and start and stop get involved, and engine misses, i.e. vehicle are in traveling
During electromotor also can stop working, it is desirable to, EPS can not interrupt power steering.
In the vehicle carrying mixed dynamic power assembly, EPS need to provide for the judgement of mixed dynamic mode of operation and help
When power, vehicle launch and low speed, electromotor does not starts, motor provide driving dynamics.Either motor mould
Formula or engine working mode, owing to vehicle is travelling, it is desirable to electric power steering (EPS) continues and steady
Fixed offer power-assisted.I.e. EPS can distinguish electromotor and shut down is owing to vehicle is shut down or mixes movement controller
(HCU) just shut down after getting involved.I.e. HCU request electromotor is shut down and is entered the pattern that motor travels
(HCU_EMS_StopReq), time, EPS persistently exports power-assisted.
In pure electronic (EV) vehicle, owing to without electromotor, EPS does not believes further according to engine condition or rotating speed
Number judge whether to provide power-assisted, but when vehicle possesses driving conditions, power-assisted can be provided.Work as key
After on shelves stubborn such as startup, vehicle display start, possess driveability, and controller for electric vehicle (VCU)
Sending vehicle launch signal (READYLightSts), electric power steering (EPS) enters provides assistant mode.
In sum, electric power steering (EPS) needs a unified strategy to tackle different dynamic summation to join
Put.If needing EPS that signal can be kept in various configurations unified, and can provide under steam and turn to
Power-assisted, only need to receive all of the above node signal, when one of any condition meets, it is provided that power-assisted.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by upper
State the restriction of mode, if the various unsubstantialities that the method design that have employed the present invention is carried out with technical scheme
Improvement, or the most improved design by the present invention and technical scheme directly apply to other occasion, all exists
Within protection scope of the present invention.
Claims (7)
1. vehicle electric steering, including EPS, it is characterised in that: described EPS receives electromotor shape
State signal or engine rotational speed signal, and be configured with for joining start and stop status signal, mixed dynamic status signal or electricity
The EPS operating condition control method of motor-car status signal.
Vehicle electric steering the most according to claim 1, it is characterised in that: for described start and stop
The EPS operating condition control method of status signal: the signals below in EPS receives start and stop status signal, EPS
Helping tries hard to keep holds offer power-assisted, and signal includes: start and stop are shut down, need to be started by starter, can be automatic
Startup, starting state, shut down.
Vehicle electric steering the most according to claim 1, it is characterised in that: for described mixed dynamic
The EPS operating condition control method of status signal: the signals below in EPS receives mixed dynamic status signal, EPS
Helping tries hard to keep holds offer power-assisted, and signal includes: request stop.
Vehicle electric steering the most according to claim 1, it is characterised in that: for described electronic
The EPS operating condition control method of car status signal: receive the signals below of electric vehicle state signal at EPS,
EPS helps to try hard to keep and holds offer power-assisted, and signal includes: start.
Vehicle electric steering the most according to claim 1, it is characterised in that: start for described
The EPS operating condition control method of machine status signal: receive the signals below of engine status signal at EPS,
EPS helps to try hard to keep and holds offer power-assisted, and signal includes: start.
Vehicle electric steering the most according to claim 1, it is characterised in that: start for described
The EPS operating condition control method of machine tach signal: receive the signals below of engine rotational speed signal at EPS,
EPS helps to try hard to keep and holds offer power-assisted, and signal includes: rotating speed is more than setting value.
7. according to the vehicle electric steering according to any one of claim 1-6, it is characterised in that: institute
State EPS and connect BCM.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610355166.4A CN105946966A (en) | 2016-05-26 | 2016-05-26 | Vehicle EPS (Electric Power Steering System) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610355166.4A CN105946966A (en) | 2016-05-26 | 2016-05-26 | Vehicle EPS (Electric Power Steering System) |
Publications (1)
Publication Number | Publication Date |
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CN105946966A true CN105946966A (en) | 2016-09-21 |
Family
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Family Applications (1)
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CN201610355166.4A Pending CN105946966A (en) | 2016-05-26 | 2016-05-26 | Vehicle EPS (Electric Power Steering System) |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108569335A (en) * | 2018-04-26 | 2018-09-25 | 奇瑞汽车股份有限公司 | Control method of electric steering system |
CN110304133A (en) * | 2019-05-30 | 2019-10-08 | 北京汽车股份有限公司 | Electric power-assisted steering control method and system, vehicle |
CN113415339A (en) * | 2021-07-28 | 2021-09-21 | 岚图汽车科技有限公司 | Electric power steering control method and device and electronic equipment |
CN113753122A (en) * | 2020-06-05 | 2021-12-07 | 广州汽车集团股份有限公司 | Electric power steering control method, electric power steering system, and storage medium |
US11485407B2 (en) | 2019-05-16 | 2022-11-01 | Lightning Systems, Inc. | Smart electronic power steering system and method for a retrofitted electric vehicle |
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JP2008143483A (en) * | 2006-12-13 | 2008-06-26 | Toyota Motor Corp | Control unit for hybrid vehicle |
CN103192877A (en) * | 2013-03-22 | 2013-07-10 | 重庆长安铃木汽车有限公司 | Speed switching system of electric vehicle electric power steering (EPS) system |
CN103552600A (en) * | 2013-11-15 | 2014-02-05 | 东风襄阳旅行车有限公司 | Electromobile power-driven hydraulic power steering control system and method |
CN104670305A (en) * | 2015-03-19 | 2015-06-03 | 安徽江淮汽车股份有限公司 | Electric power steering control method and control system for HEV (Hybrid Electric Vehicle) |
CN104773199A (en) * | 2014-01-14 | 2015-07-15 | 福特全球技术公司 | Method for operating an electric steering support for a motor vehicle, and electric steering support and accordingly equipped motor vehicle |
JP2016022839A (en) * | 2014-07-22 | 2016-02-08 | 株式会社ジェイテクト | Electric power steering device |
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2016
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Patent Citations (6)
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JP2008143483A (en) * | 2006-12-13 | 2008-06-26 | Toyota Motor Corp | Control unit for hybrid vehicle |
CN103192877A (en) * | 2013-03-22 | 2013-07-10 | 重庆长安铃木汽车有限公司 | Speed switching system of electric vehicle electric power steering (EPS) system |
CN103552600A (en) * | 2013-11-15 | 2014-02-05 | 东风襄阳旅行车有限公司 | Electromobile power-driven hydraulic power steering control system and method |
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JP2016022839A (en) * | 2014-07-22 | 2016-02-08 | 株式会社ジェイテクト | Electric power steering device |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108569335A (en) * | 2018-04-26 | 2018-09-25 | 奇瑞汽车股份有限公司 | Control method of electric steering system |
US11485407B2 (en) | 2019-05-16 | 2022-11-01 | Lightning Systems, Inc. | Smart electronic power steering system and method for a retrofitted electric vehicle |
CN110304133A (en) * | 2019-05-30 | 2019-10-08 | 北京汽车股份有限公司 | Electric power-assisted steering control method and system, vehicle |
CN113753122A (en) * | 2020-06-05 | 2021-12-07 | 广州汽车集团股份有限公司 | Electric power steering control method, electric power steering system, and storage medium |
CN113753122B (en) * | 2020-06-05 | 2022-11-01 | 广州汽车集团股份有限公司 | Electric power steering control method, electric power steering system, and storage medium |
US12012159B2 (en) | 2020-06-05 | 2024-06-18 | Guangzhou Automobile Group Co., Ltd. | Electric power steering control method, electric power steering system, and storage medium |
CN113415339A (en) * | 2021-07-28 | 2021-09-21 | 岚图汽车科技有限公司 | Electric power steering control method and device and electronic equipment |
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Application publication date: 20160921 |