CN101782037A - Device and method for preventing engine contrarotation in frequent start-stop power system - Google Patents
Device and method for preventing engine contrarotation in frequent start-stop power system Download PDFInfo
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- CN101782037A CN101782037A CN200910045518A CN200910045518A CN101782037A CN 101782037 A CN101782037 A CN 101782037A CN 200910045518 A CN200910045518 A CN 200910045518A CN 200910045518 A CN200910045518 A CN 200910045518A CN 101782037 A CN101782037 A CN 101782037A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention relates to the field of engine control, in particular to a device and a method for preventing engine contrarotation in a frequent start-stop power system. The device for preventing the engine contrarotation in the frequent start-stop power system comprises an engine (1), a motor (2), a clutch (3) and a manual gear box (4), wherein a rotating shaft of the engine (1) is connected with a rotating shaft of the motor (2), and the manual gear box (4) is connected with the motor (2) through the clutch (3). The device is characterized by further comprising an engine electric control unit (5), a motor electric control unit (6) and an entire machine electric control unit (7), wherein the engine electric control unit (5) is connected with the engine (1), the motor electric control unit (6) is connected with the motor (2), and the engine electric control unit (5) and the motor electric control unit (6) are connected with the entire machine electric control unit (7). The device has a simple structure and a good effect of preventing the contrarotation.
Description
Technical field
The present invention relates to field of engine control, be specially preventing engine reversing mechanism and method in a kind of frequent start-stop power system.
Background technique
Along with environmental protection and energy-conservation notion are more and more accepted by the public, the application of oil electric mixed dynamic on automobile is just increasingly extensive.Automobile is very frequent in the conversion of running process kind start-stop, and in order to maximally utilise energy, the energy that the automobile of mixed power needs to be produced in the time of will braking in the frequent start-stop process is absorbed and supplies with battery charge.The sense of rotation of motor and rotating speed all have supervisory device to be monitored in real time, and provide the control corresponding instruction according to the information of gained.Engine speed is less during brake, but, existing supervisory system depends on velocity transducer, and it is low to be used for the velocity transducer precision of motor, when 200rpm is following, the error that speed detects is bigger, simultaneously, there is the time error of each controller unit rate signal transmission, can causes motor when the low moment of low speed is exported, supervisory system has still provided the control signal of big moment to motor, its possibility of result causes engine inversion.In addition, owing to reasons such as some system exceptions or engine ignitions, also may cause motor counter-rotating fault.When counter-rotating took place motor, the air that carries various dust just was inhaled in the cylinder from outlet pipe, made cylinder inner carrier and distribution device aggravation wearing and tearing, and simultaneously, air-strainer has become outlet pipe at this moment, was subjected to the pollution of waste gas and high temperature fire-cures and too early going bad.
Summary of the invention
In order to overcome the defective of prior art, provide a kind of control accurate supervisory system, the invention discloses preventing engine reversing mechanism and method in a kind of frequent start-stop power system.
The present invention reaches goal of the invention by following technical solution:
Preventing engine reversing mechanism in a kind of frequent start-stop power system, comprise motor, motor, clutch, manual transmission, the rotating shaft of motor is connected with the rotating shaft of motor, and manual transmission is connected with motor by clutch, it is characterized in that: also comprise engine electric-controlled unit, electric control unit and car load ECU (Electrical Control Unit), engine electric-controlled unit is connected with motor, and the electric control unit is connected with motor, and engine electric-controlled unit all is connected with the car load ECU (Electrical Control Unit) with the electric control unit.
Preventing engine reversing mechanism in the described frequent start-stop power system is characterized in that: motor adopts the motor generator integrated electric motor.
Preventing engine inverting method in a kind of frequent start-stop power system, at the rotating speed of measuring motor with after turning to, motor rotational speed and output torque by control and motor connecting shaft are carried out, it is characterized in that: be in when being rotated in the forward when engine electric-controlled unit records motor, electric control unit controls motor is rotated in the forward, its output torque is along with change in rotational speed is done following variation: moment is also synchronously started from scratch when rotating speed is started from scratch increase increases with linear dependence, moment increases to after the specified maximum moment value of forward of motor that rotating speed continues to increase and moment is constant, moment reducing and reduce with inversely prroportional relationship with rotating speed when rotating speed surpasses rated speed.
Preventing engine inverting method in the described frequent start-stop power system, it is characterized in that: when engine electric-controlled unit records motor and is in improper counterrotating, electric control unit controls motor is rotated in the forward, its output torque is along with change in rotational speed is done following variation: moment is also synchronously started from scratch when rotating speed is started from scratch increase increases with linear dependence, moment increases to after the reverse specified maximum moment value of motor that rotating speed continues to increase and moment is constant, when rotating speed surpasses rated speed, control the rotation of engine electric-controlled unit shutting engine down, and continue to be rotated in the forward by the driven by motor motor by the car load ECU (Electrical Control Unit).
The invention has the beneficial effects as follows: simple in structure, made full use of the high-precision characteristics of motor speed sensor, by with the rotating speed of motor speed, thereby can effectively prevent and correct the counter-rotating of motor as motor.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is motor graph of a relation between motor speed and the output torque when being rotated in the forward;
Fig. 3 is that motor is rotated in the forward time control motor output torque along with change in rotational speed figure;
Control motor output torque was along with change in rotational speed figure when Fig. 4 was the improper counterrotating of motor.
Embodiment
Below further specify the present invention by specific embodiment.
Prevent the device of engine inversion in a kind of frequent start-stop power system, comprise motor 1, motor 2, clutch 3, manual transmission 4, the rotating shaft of motor 1 is connected with the rotating shaft of motor 2, manual transmission 4 is connected with motor 2 by clutch 3, engine electric-controlled unit 5, electric control unit 6 and car load ECU (Electrical Control Unit) 7, concrete structure as shown in Figure 1, engine electric-controlled unit 5 is connected with motor 1, electric control unit 6 is connected with motor 2, and engine electric-controlled unit 5 all is connected with car load ECU (Electrical Control Unit) 7 with electric control unit 6.Motor 2 adopts the motor generator integrated electric motor.
During use, when recording motor 1, engine electric-controlled unit 5 is in when being rotated in the forward, relation between rotating speed of motor speed and the output torque torque as shown in Figure 2 at this moment, electric control unit 6 control motors 2 are rotated in the forward, its output torque along with change in rotational speed as shown in Figure 3: when the rotating speed moment of starting from scratch when increasing is also synchronously started from scratch and increased with linear dependence, moment increases to after the specified maximum moment value of forward of motor 2 that rotating speed continues to increase and moment is constant.
When engine electric-controlled unit 5 records motor 1 and is in improper counterrotating, electric control unit 6 control motors 2 are rotated in the forward, its output torque along with change in rotational speed as shown in Figure 4: when the rotating speed moment of starting from scratch when increasing is also synchronously started from scratch and increased with linear dependence, moment increases to after the reverse specified maximum moment value of motor 2 that rotating speed continues to increase and moment is constant, when rotating speed surpasses rated speed, control the rotation of engine electric-controlled units 5 shutting engine downs 1, and continue to be rotated in the forward by motor 2 drive motors 1 by car load ECU (Electrical Control Unit) 7.
Claims (4)
1. preventing engine reversing mechanism in the frequent start-stop power system, comprise motor (1), motor (2), clutch (3), manual transmission (4), the rotating shaft of motor (1) is connected with the rotating shaft of motor (2), manual transmission (4) is connected with motor (2) by clutch (3), it is characterized in that: also comprise engine electric-controlled unit (5), electric control unit (6) and car load ECU (Electrical Control Unit) (7), engine electric-controlled unit (5) is connected with motor (1), and electric control unit (6) are connected with motor (2), and engine electric-controlled unit (5) all is connected with car load ECU (Electrical Control Unit) (7) with electric control unit (6).
2. preventing engine reversing mechanism in the frequent start-stop power system as claimed in claim 1 is characterized in that: motor (2) adopts the motor generator integrated electric motor.
3. preventing engine inverting method in the frequent start-stop power system, at the rotating speed of measuring motor with after turning to, motor rotational speed and output torque by control and motor connecting shaft are carried out, it is characterized in that: be in when being rotated in the forward when engine electric-controlled unit (5) records motor (1), electric control unit (6) control motor (2) is rotated in the forward, its output torque is along with change in rotational speed is done following variation: moment is also synchronously started from scratch when rotating speed is started from scratch increase increases with linear dependence, moment increases to after the specified maximum moment value of forward of motor (2) that rotating speed continues to increase and moment is constant, moment reducing and reduce with inversely prroportional relationship with rotating speed when rotating speed surpasses rated speed.
4. preventing engine inverting method in the frequent start-stop power system as claimed in claim 3, it is characterized in that: when engine electric-controlled unit (5) records motor (1) when being in improper counterrotating, electric control unit (6) control motor (2) is rotated in the forward, its output torque is along with change in rotational speed is done following variation: moment is also synchronously started from scratch when rotating speed is started from scratch increase increases with linear dependence, moment increases to after the reverse specified maximum moment value of motor (2) that rotating speed continues to increase and moment is constant, when rotating speed surpasses rated speed, control the rotation of engine electric-controlled unit (5) shutting engine down (1), and continue to be rotated in the forward by motor (2) drive motor (1) by car load ECU (Electrical Control Unit) (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100455186A CN101782037B (en) | 2009-01-19 | 2009-01-19 | Method for preventing engine contrarotation in frequent start-stop power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100455186A CN101782037B (en) | 2009-01-19 | 2009-01-19 | Method for preventing engine contrarotation in frequent start-stop power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782037A true CN101782037A (en) | 2010-07-21 |
| CN101782037B CN101782037B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100455186A Active CN101782037B (en) | 2009-01-19 | 2009-01-19 | Method for preventing engine contrarotation in frequent start-stop power system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476584A (en) * | 2010-11-30 | 2012-05-30 | 现代自动车株式会社 | Apparatus and method for controlling engine restarting of vehicle |
| CN102529945A (en) * | 2010-12-29 | 2012-07-04 | 上海汽车集团股份有限公司 | Halt control method and system of hybrid power vehicle |
| CN102556048A (en) * | 2010-12-29 | 2012-07-11 | 上海汽车集团股份有限公司 | Automatic halt control method and system for hybrid power vehicle |
| CN102661310A (en) * | 2012-05-23 | 2012-09-12 | 东方电气集团东风电机有限公司 | Driving motor shaft for hybrid electric vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6435158B1 (en) * | 2001-02-21 | 2002-08-20 | Ford Global Technologies, Inc. | Method and system for preventing reverse running of internal combustion engine |
| KR100527446B1 (en) * | 2003-10-22 | 2005-11-09 | 현대자동차주식회사 | An gasoline engine control strategy for the prevention of back fire by detecting backward revolution |
| JP4096863B2 (en) * | 2003-11-07 | 2008-06-04 | トヨタ自動車株式会社 | Engine starting device and engine starting method |
| US7543564B2 (en) * | 2006-01-17 | 2009-06-09 | Gm Global Technology Operations, Inc. | Reverse rotation intake manifold protection system and method |
-
2009
- 2009-01-19 CN CN2009100455186A patent/CN101782037B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476584A (en) * | 2010-11-30 | 2012-05-30 | 现代自动车株式会社 | Apparatus and method for controlling engine restarting of vehicle |
| CN102476584B (en) * | 2010-11-30 | 2016-02-10 | 现代自动车株式会社 | For controlling the apparatus and method of the engine restarting of vehicle |
| CN102529945A (en) * | 2010-12-29 | 2012-07-04 | 上海汽车集团股份有限公司 | Halt control method and system of hybrid power vehicle |
| CN102556048A (en) * | 2010-12-29 | 2012-07-11 | 上海汽车集团股份有限公司 | Automatic halt control method and system for hybrid power vehicle |
| CN102556048B (en) * | 2010-12-29 | 2015-02-18 | 上海汽车集团股份有限公司 | Automatic halt control method and system for hybrid power vehicle |
| CN102529945B (en) * | 2010-12-29 | 2015-06-17 | 上海汽车集团股份有限公司 | Halt control method and system of hybrid power vehicle |
| CN102661310A (en) * | 2012-05-23 | 2012-09-12 | 东方电气集团东风电机有限公司 | Driving motor shaft for hybrid electric vehicle |
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| CN101782037B (en) | 2013-05-15 |
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