CN104670305B - Electric power-assisted steering control method and control system for hybrid vehicle - Google Patents
Electric power-assisted steering control method and control system for hybrid vehicle Download PDFInfo
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- CN104670305B CN104670305B CN201510121557.5A CN201510121557A CN104670305B CN 104670305 B CN104670305 B CN 104670305B CN 201510121557 A CN201510121557 A CN 201510121557A CN 104670305 B CN104670305 B CN 104670305B
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- tach signal
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Abstract
The invention discloses a kind of electric power-assisted steering control method and control system for hybrid vehicle, the control method is comprised the following steps：The tach signal of the electromotor that entire car controller real-time detection is received；When the entire car controller does not receive the tach signal in predetermined period, its signal imitation unit produces simulation tach signal and exports to the booster steering controller；The booster steering controller control assist motor exports power-assisted to steering column.Electric Power Steering Control System and control method provided by the present invention for hybrid vehicle, when hybrid vehicle is using battery power rather than fuel power, booster steering controller can equally receive the tach signal of electromotor normal work, solve the problems, such as that now booster steering controller does not control assist motor output power-assisted in prior art.
Description
Technical field
The present invention relates to automotive engineering, and in particular to a kind of electric power-assisted steering control method for hybrid vehicle
And control system.
Background technology
The features such as electric boosting steering system (EPS) is because of its simple structure, arrangement convenience, fuel-economizing, little noise, in automobile
In be increasingly widely applied.
Conventional fuel oil car of the prior art, its electric boosting steering system first pass through assist controller collection electromotor
Tach signal, automobile ignition signal, GES and torque signal, each signal of assist controller comprehensive descision is controlling power-assisted
Whether motor exports booster torquemoment to steering column.Wherein, the tach signal of electromotor be electric boosting steering system unlatching,
Work and the primitive decision signal for exiting.
Hybrid vehicle, after using above-mentioned electric boosting steering system, in startup, start and stop and crawling, is saving
The energy, the engine misses of automobile no longer work, and provide the energy by accumulator for automobile, now, electric boosting steering system because
Off working state is in for not receiving above-mentioned tach signal, steering lose due to not receiving power-assisted safety and
Comfortableness.
Content of the invention
It is an object of the invention to provide the electric power-assisted steering control method and control system for hybrid vehicle, with
The idle problem of electric boosting steering system part-time during normal use in solution prior art.
To achieve these goals, the present invention provides following technical scheme：
A kind of electric power-assisted steering control method for hybrid vehicle, comprises the following steps：
The tach signal of the electromotor that entire car controller real-time detection is received；
When the entire car controller does not receive the tach signal in predetermined period, its signal imitation unit produces mould
Intend tach signal and export to the booster steering controller；
The booster steering controller control assist motor exports power-assisted to steering column.
Above-mentioned electric power-assisted steering control method, the engine speed letter that the entire car controller real-time detection is received
Number also include,
The engine rotational speed signal received when the entire car controller not within the predefined range, the signal imitation
Unit produces simulation tach signal and exports to the booster steering controller.
A kind of Electric Power Steering Control System for hybrid vehicle, including：
Engine speed collecting unit, for gathering the tach signal of electromotor；
Booster steering controller, for receiving the tach signal；
Assist motor, its receive the control of the booster steering controller with to steering column output power-assisted；
Characterized in that, also including entire car controller, the engine speed collecting unit passes through the entire car controller
The tach signal is exported to the booster steering controller；
Signal imitation unit, when the entire car controller does not receive the tach signal, the letter in predetermined period
Number analogue unit produces simulation tach signal and exports to the booster steering controller.
Above-mentioned Electric Power Steering Control System, also includes,
Whether data determining unit, is arranged in the entire car controller, for judging the tach signal in predetermined model
In enclosing.
Above-mentioned Electric Power Steering Control System,
2t1≤t0≤6t1
Wherein, t0For the predetermined period；
t1The cycle for gathering the tach signal for the electromotor.
Above-mentioned Electric Power Steering Control System, the preset range are more than 600 rpms.
In above-mentioned technical proposal, Electric Power Steering Control System provided by the present invention for hybrid vehicle and
Control method, electromotor is by entire car controller to booster steering controller output speed signal, entire car controller real-time detection
The tach signal for receiving, when in predetermined period, entire car controller does not receive tach signal, which simulates tach signal
And booster steering controller is sent to, and thus, when hybrid vehicle is using battery power rather than fuel power, power-assisted steering
Controller can equally receive the tach signal of electromotor normal work, solve now power-assisted steering control in prior art
Device processed does not control the problem that assist motor exports power-assisted.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for using is needed to be briefly described, it should be apparent that, drawings in the following description are only described in the present invention
A little embodiments, for those of ordinary skill in the art, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the principle frame of the Electric Power Steering Control System for hybrid vehicle provided in an embodiment of the present invention
Figure；
Fig. 2 is the flow process of the electric power-assisted steering control method for hybrid vehicle provided in an embodiment of the present invention
Figure.
Description of reference numerals：
1st, electromotor；2nd, entire car controller；3rd, booster steering controller；4th, assist motor；5th, vehicle speed sensor；6th, light a fire
Signal transducer；7th, moment of torsion angular transducer.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, below in conjunction with accompanying drawing to this
Bright it is further detailed.
As shown in Figure 1-2, a kind of electric power steering for hybrid vehicle provided in an embodiment of the present invention is controlled
Method, comprises the following steps：
101st, the tach signal of the electromotor 1 that 2 real-time detection of entire car controller is received.
Engine management system (EMS) of the prior art is provided with various sensors, including speed probe
(HVCU), the rotating speed of speed probe real-time detection electromotor 1 tach signal is sent to entire car controller 2, full-vehicle control
Device 2 receives and detects the tach signal.
102nd, entire car controller 2 judges whether receive tach signal in predetermined period.
Predetermined period, such as 50ms, have exceeded predetermined week when 2 judging distance of entire car controller receives a upper tach signal
Phase and when not yet receiving tach signal, that is, judge that electromotor 1 has stopped working, enter next step.
103rd, when in predetermined period, entire car controller 2 does not receive tach signal, its signal imitation unit produces simulation
Tach signal is simultaneously exported to booster steering controller 3；
The decision logic of entire car controller 2 is：When distance receives the time of previous tach signal more than predetermined period, enable
Signal imitation unit.Thus after after electromotor 1 is flame-out restarting and normally run, when its second to entire car controller 2
When sending tach signal, entire car controller 2 is the work of shutdown signal analogue unit.Thus, during running car, electromotor
1 and signal imitation units alternately work.
Signal imitation unit produces simulation tach signal and is sent to booster steering controller 3, such as 4000 rpms.Help
The tach signal received before and after power steering controller 3 is consistent with data type with the signal type of simulation tach signal, its
Difference part is only that tach signal comes from the speed probe of electromotor 1, and which is transferred by entire car controller 2, simulates rotating speed
Signal comes from the signal imitation unit of entire car controller 2.What simulation tach signal reflected is the rotating speed that electromotor 1 runs well
Signal, the such as rated speed of electromotor 1 are 3000-5000 rpm, and signal imitation unit simulation should be that the rotating speed is located at
The tach signal of the part.
104th, the control of booster steering controller 3 assist motor 4.
Referring to prior art, do not repeat.
105th, assist motor 4.Power-assisted is exported to steering column.
Referring to prior art, do not repeat.
In above-mentioned steps 102, when in predetermined period, entire car controller 2 receives tach signal, further, also wrap
Include,
106th, whether within a predetermined range entire car controller 2 judges tach signal, and signal imitation unit produces simulation rotating speed
Signal is simultaneously exported to booster steering controller 3.
Booster steering controller 3 is helped with calculating according to tach signal, ignition signal and GES etc. comprehensive descision
The size of the power-assisted of the output of force motor 4, tach signal can cause booster steering controller 3 in normal range and non-normal range
Calculate different size of power-assisted accordingly.When the electromotor 1 of automobile starting electric power fuel power is not yet thoroughly stalled,
1 speed probe of electromotor is possible to lasting 1 tach signal of electromotor for being less than rated speed to the output of entire car controller 2,
What the power-assisted of power-assisted steering device signal control assist motor 4 output accordingly may be actually smaller than that steering column is actually needed helps
Power.The size of the tach signal that normal controller real-time judge is received, when which is in the range of non-predetermined, starts aforementioned step
Rapid 103, that is, enable signal imitation unit.
Such as larger than 600 rpms of preset range, i.e., when the tach signal that entire car controller 2 is received shows that rotating speed is less than
When being equal to 600 rpms, signal imitation unit is enabled.
The electric power-assisted steering control method for hybrid vehicle that the present embodiment is provided, electromotor 1 pass through car load
, to 3 output speed signal of booster steering controller, the tach signal that 2 real-time detection of entire car controller is received, when pre- for controller 2
When in fixed cycle, entire car controller 2 receives not receiving tach signal, which is simulated tach signal and is sent to power-assisted steering control
Device 3, thus, when hybrid vehicle is using battery power rather than fuel power, booster steering controller 3 can equally be received
To tach signal the normal work of electromotor 1, solve in prior art now booster steering controller 3 and do not control power-assisted electricity
Machine 4 exports the problem of power-assisted.
As shown in figure 1, a kind of electric power steering for hybrid vehicle that the embodiment of the present invention is also provided is controlled
System, including 1 rotating speed collecting unit of electromotor, for gathering the tach signal of electromotor 1；Booster steering controller 3, for connecing
Receive tach signal；Assist motor 4, its receive the control of booster steering controller 3 with to steering column output power-assisted；Full-vehicle control
Device 2,1 rotating speed collecting unit of electromotor is by entire car controller 2 to 3 output speed signal of booster steering controller；Signal imitation
Unit, when entire car controller 2 does not receive tach signal in predetermined period, signal imitation unit produces simulation tach signal simultaneously
Export to booster steering controller 3.Data determining unit, is arranged in entire car controller 2, for judging that whether tach signal exists
In preset range.
Above-mentioned module is corresponded with method, and the present embodiment is repeated no more.
In addition, booster steering controller 3 and vehicle speed sensor 5, ignition signal sensor 6 and moment of torsion angular transducer 7
Annexation see that, referring to prior art, the present embodiment is not repeated.
Above some one exemplary embodiments for only describing the present invention by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain, in the case of without departing from the spirit and scope of the present invention, can with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as to the present invention
The restriction of claims.
Claims (6)
1. a kind of electric power-assisted steering control method for hybrid vehicle, it is characterised in that comprise the following steps：
The tach signal of the electromotor that entire car controller real-time detection is received；
When the entire car controller does not receive the tach signal in predetermined period, its signal imitation unit produces simulation and turns
Fast signal is simultaneously exported to booster steering controller；
The booster steering controller control assist motor exports power-assisted to steering column.
2. electric power-assisted steering control method according to claim 1, it is characterised in that the entire car controller is examined in real time
Surveying the engine rotational speed signal for receiving also includes,
The engine rotational speed signal received when the entire car controller not within the predefined range, the signal imitation unit
Produce simulation tach signal and export to the booster steering controller.
3. a kind of Electric Power Steering Control System for hybrid vehicle, including：
Engine speed collecting unit, for gathering the tach signal of electromotor；
Booster steering controller, for receiving the tach signal；
Assist motor, its receive the control of the booster steering controller with to steering column output power-assisted；
Characterized in that, also including entire car controller, the engine speed collecting unit is by the entire car controller to institute
State booster steering controller and export the tach signal；
Signal imitation unit, when the entire car controller does not receive the tach signal, the signal mode in predetermined period
Quasi-simple unit produces simulation tach signal and exports to the booster steering controller.
4. Electric Power Steering Control System according to claim 3, it is characterised in that also include,
Within a predetermined range whether data determining unit, is arranged in the entire car controller, for judging the tach signal.
5. Electric Power Steering Control System according to claim 3, it is characterised in that
2t1≤t0≤6t1
Wherein, t0For the predetermined period；
t1The cycle for gathering the tach signal for the electromotor.
6. Electric Power Steering Control System according to claim 3, it is characterised in that the preset range be more than
600 rpms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121557.5A CN104670305B (en) | 2015-03-19 | 2015-03-19 | Electric power-assisted steering control method and control system for hybrid vehicle |
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| CN201510121557.5A CN104670305B (en) | 2015-03-19 | 2015-03-19 | Electric power-assisted steering control method and control system for hybrid vehicle |
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| CN104670305A CN104670305A (en) | 2015-06-03 |
| CN104670305B true CN104670305B (en) | 2017-03-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946966A (en) * | 2016-05-26 | 2016-09-21 | 奇瑞汽车股份有限公司 | Vehicle EPS (Electric Power Steering System) |
| CN107444484B (en) * | 2017-07-27 | 2019-09-24 | 东风汽车公司 | A kind of motor turning power-assisted start-up and shut-down control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6392418B1 (en) * | 1999-09-16 | 2002-05-21 | Delphi Technologies, Inc. | Torque current comparison for current reasonableness diagnostics in a permanent magnet electric machine |
| KR100418783B1 (en) * | 2001-03-12 | 2004-02-19 | 현대자동차주식회사 | Variable type steering controlled system of hybrid electric vehicle and thereof method |
| JP4556672B2 (en) * | 2005-01-12 | 2010-10-06 | トヨタ自動車株式会社 | Vehicle regeneration control device |
| KR20140081050A (en) * | 2012-12-21 | 2014-07-01 | 현대자동차주식회사 | Steering apparatus for HEV and control method for the same |
| CN103448792A (en) * | 2013-08-30 | 2013-12-18 | 郑州宇通客车股份有限公司 | Dual drive power-assisted steering system and control method for hybrid electric vehicle |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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