CN102852689A - Protection circuit for engine starting system and protection strategy - Google Patents
Protection circuit for engine starting system and protection strategy Download PDFInfo
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- CN102852689A CN102852689A CN201210269260XA CN201210269260A CN102852689A CN 102852689 A CN102852689 A CN 102852689A CN 201210269260X A CN201210269260X A CN 201210269260XA CN 201210269260 A CN201210269260 A CN 201210269260A CN 102852689 A CN102852689 A CN 102852689A
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- 230000001681 protective effect Effects 0.000 claims description 24
- 239000007858 starting material Substances 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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Abstract
The invention aims at providing a protection circuit for an engine starting system and a protection strategy applying the protection circuit, so as to avoid the problems that a starting engine is damaged and a storage battery is overly discharged. The protection circuit for the engine starting system disclosed by the invention comprises a starting circuit composed of a storage battery, a controlled loop of a starting relay and a starting motor which are sequentially connected in series; and the protection circuit for the engine starting system is characterized in that one end of the controlled loop of the starting relay is connected with an ignition switch, the other end of the controlled loop is grounded by virtue of an auxiliary switch controlled by a vehicle body controller, and the vehicle body controller is connected with an engine control module. The protection circuit for the engine starting system disclosed by the invention is simple in structure, low in cost, convenient to control and reliable, can effectively avoid the problems that the starting engine is damaged and the storage battery is overly discharged, and has good practicability.
Description
Technical field
The present invention relates to vehicle startup system, specially refer to a kind of protective circuit and protection strategy of engine starting system, with protection Starter and storage battery.
Background technique
Most motor car engine idling is about 700～800 rpm, but it is general only about 200 rpm to start rotating speed, that is to say that motor can normally start if Starter can drive engine speed to 200 rpm.Need artificial ignition key being forwarded to the start gear and keep a period of time of user in actual the use, successfully after the running, the user unclamps ignition key again until the subjective sensation motor, and starting circuit disconnects.Limit by user experience and subjective feeling, mostly all have the problem of start-up operation overlong time.That is: engine speed is when normally successfully starting required rotating speed, the user still remains on the start gear to ignition key, storage battery is still supplying electric operation to Starter, can cause like this storage battery deep discharge, damage Starter, thereby affect performance and the life-span of storage battery and Starter.
Summary of the invention
The objective of the invention is to propose a kind of protective circuit of engine starting system, and the protection strategy of using this protective circuit, to avoid Starter damage and storage battery over-discharge can.
The protective circuit of engine starting system of the present invention has following two kinds:
The protective circuit of the first engine starting system comprises the starting circuit of being connected and being consisted of successively by control loop, starting electrical machinery by storage battery, starting relay; the two ends of the control loop of described starting relay link to each other with an ignition switch respectively and ground connection; so that ignition switch can be controlled the break-make of starting relay; key is also to be serially connected with an auxiliary switch of being controlled by car body controller in the described starting circuit, and described car body controller links to each other with engine control module.
The protection strategy of using the protective circuit of the first engine starting system comprises the steps: under the ignition switch off state, the quilt control circuit communication of car body controller control auxiliary switch; After the ignition switch closure, car body controller utilizes engine control module to obtain engine speed, and after engine speed surpassed desired speed, car body controller disconnected the loop of being controlled of auxiliary switch, thereby disconnects starting circuit.After so can not appearing at motor and reaching predetermined rotating speed, storage battery is still to the situation of starting electrical machinery power supply, thereby avoids Starter damage and the excessive deep discharge of storage battery.
Specifically, above-mentioned auxiliary switch is auxiliary relay, and the loop of being controlled of described auxiliary relay is serially connected with in the starting circuit, and an end of the control loop of described auxiliary relay links to each other with car body controller, the other end ground connection.When car body controller is exported different level, can control auxiliary relay adhesive or disconnection.
Further, described auxiliary relay is normally closed relay.Even car body controller breaks down or when removing like this because auxiliary relay is failed adhesive, so auxiliary relay be in connected state by the control loop, can not affect normal startup.
The protective circuit of the second engine starting system comprises the starting circuit of being connected and being consisted of successively by control loop, starting electrical machinery by storage battery, starting relay; key is that an end of the control loop of described starting relay links to each other with an ignition switch; the other end is by an auxiliary switch ground connection of being controlled by car body controller, and described car body controller links to each other with engine control module.
The protection strategy of using the protective circuit of the second engine starting system comprises the steps: under the ignition switch off state, the quilt control circuit communication of car body controller control auxiliary switch; After the ignition switch closure, car body controller utilizes engine control module to obtain engine speed, and after engine speed surpassed desired speed, car body controller disconnected the loop of being controlled of auxiliary switch, thereby disconnects starting relay, and then disconnects starting circuit.After so can not appearing at motor and reaching predetermined rotating speed, storage battery is still to the situation of starting electrical machinery power supply, thereby avoids Starter damage and the excessive deep discharge of storage battery.
Specifically, described auxiliary switch is auxiliary relay, and the end by the control loop of described auxiliary relay links to each other with starting relay, the other end ground connection, and an end of the control loop of described auxiliary relay links to each other with car body controller, the other end ground connection.When car body controller is exported different level, can control auxiliary relay adhesive or disconnection.
Further, described auxiliary relay is normally closed relay.Even car body controller breaks down or when removing like this because auxiliary relay is failed adhesive, so auxiliary relay be in connected state by the control loop, can not affect normal startup.
The protective circuit of engine starting system of the present invention is simple in structure, and cost is low, and control is convenient, reliable, can effectively avoid Starter damage and storage battery over-discharge can, has good practicability.
Description of drawings
Fig. 1 is the protective circuit schematic diagram of embodiment 1 engine starting system.
Fig. 2 is the protective circuit schematic diagram of embodiment 2 engine starting system.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail.
Embodiment 1:
As shown in Figure 1; the protective circuit of the engine starting system of present embodiment comprises the starting circuit of being connected and being consisted of successively by control loop, starting electrical machinery 3 by storage battery 1, starting relay 2; the two ends of the control loop of starting relay 2 link to each other with an ignition switch 4 respectively and ground connection (another termination battery positive voltage of ignition switch 4); so that ignition switch 4 can be controlled the break-make of starting relay 2; also be serially connected with an auxiliary switch of being controlled by car body controller 5 in the starting circuit, car body controller 5 links to each other with engine control module 6.
Auxiliary switch is auxiliary relay 7, and the loop of being controlled of auxiliary relay 7 is serially connected with in the starting circuit, and an end of the control loop of auxiliary relay 7 links to each other with car body controller 5, the other end ground connection.When car body controller 5 is exported different level, can control auxiliary relay 7 adhesives or disconnection.
Auxiliary relay 7 is normally closed relay.Even car body controller 5 breaks down or when removing like this because auxiliary relay 7 is failed adhesive, so auxiliary relay 7 be in connected state by the control loop, can not affect normal startup.
The protection strategy of the protective circuit of above-mentioned engine starting system comprises the steps: under ignition switch 4 off states, car body controller 5 output low levels, so that auxiliary relay 7 is in not attracting state, this moment, the quilt of auxiliary relay 7 was controlled circuit communication; After ignition switch 4 closures, car body controller 5 utilizes engine control module 6 to obtain engine speed, after engine speed surpasses desired speed (for example 250 rpm), car body controller 5 output high level, 7 adhesives of control auxiliary relay, disconnect the loop of being controlled of auxiliary relay 7, thereby disconnect starting circuit.After so can not appearing at motor and reaching predetermined rotating speed, storage battery is still to the situation of starting electrical machinery power supply, thereby avoids Starter damage and the excessive deep discharge of storage battery.
Embodiment 2:
As shown in Figure 2; the protective circuit of the engine starting system of present embodiment comprises the starting circuit of being connected and being consisted of successively by control loop, starting electrical machinery 3 by storage battery 1, starting relay 2; one end of the control loop of starting relay 2 link to each other with an ignition switch 4 (another termination battery positive voltage of ignition switch 4); the other end is by an auxiliary switch ground connection of being controlled by car body controller 5, and car body controller 5 links to each other with engine control module 6.
Auxiliary switch is auxiliary relay 7, and the end by the control loop of auxiliary relay 7 links to each other with starting relay 2, the other end ground connection, and an end of the control loop of auxiliary relay 7 links to each other with car body controller 5, the other end ground connection.When car body controller 5 is exported different level, can control auxiliary relay 7 adhesives or disconnection.
Auxiliary relay 7 is normally closed relay.Even car body controller 5 breaks down or when removing like this because auxiliary relay 7 is failed adhesive, so auxiliary relay 7 be in connected state by the control loop, can not affect normal startup.
The protection strategy of the protective circuit of above-mentioned engine starting system comprises the steps: under ignition switch 4 off states, car body controller 5 output low levels, so that auxiliary relay 7 is in not attracting state, this moment, the quilt of auxiliary relay 7 was controlled circuit communication; After ignition switch 4 closures, car body controller 5 utilizes engine control module 6 to obtain engine speed, after engine speed surpasses desired speed (for example 250 rpm), car body controller 5 output high level, 7 adhesives of control auxiliary relay, disconnect the loop of being controlled of auxiliary relay 7, thereby disconnect starting relay 2, and then disconnect starting circuit.After so can not appearing at motor and reaching predetermined rotating speed, storage battery is still to the situation of starting electrical machinery power supply, thereby avoids Starter damage and the excessive deep discharge of storage battery.
Claims (8)
1. the protective circuit of an engine starting system; comprise the starting circuit of being connected and being consisted of successively by control loop, starting electrical machinery by storage battery, starting relay; the two ends of the control loop of described starting relay link to each other with an ignition switch respectively and ground connection; so that ignition switch can be controlled the break-make of starting relay; it is characterized in that also being serially connected with an auxiliary switch of being controlled by car body controller in the described starting circuit, described car body controller links to each other with engine control module.
2. the protective circuit of engine starting system according to claim 1; it is characterized in that described auxiliary switch is auxiliary relay; being serially connected with in the starting circuit by the control loop of described auxiliary relay; one end of the control loop of described auxiliary relay links to each other with car body controller, the other end ground connection.
3. the protective circuit of engine starting system according to claim 2 is characterized in that described auxiliary relay is normally closed relay.
4. the protective circuit of an engine starting system; comprise the starting circuit of being connected and being consisted of successively by control loop, starting electrical machinery by storage battery, starting relay; an end that it is characterized in that the control loop of described starting relay links to each other with an ignition switch; the other end is by an auxiliary switch ground connection of being controlled by car body controller, and described car body controller links to each other with engine control module.
5. the protective circuit of engine starting system according to claim 4; it is characterized in that described auxiliary switch is auxiliary relay; end by the control loop of described auxiliary relay links to each other with starting relay; the other end ground connection; one end of the control loop of described auxiliary relay links to each other with car body controller, the other end ground connection.
6. the protective circuit of engine starting system according to claim 5 is characterized in that described auxiliary relay is normally closed relay.
7. an application rights requires the protection strategy of the protective circuit of 1 described engine starting system, it is characterized in that comprising the steps: under the ignition switch off state, car body controller control auxiliary switch by the control circuit communication; After the ignition switch closure, car body controller utilizes engine control module to obtain engine speed, and after engine speed surpassed desired speed, car body controller disconnected the loop of being controlled of auxiliary switch, thereby disconnects starting circuit.
8. an application rights requires the protection strategy of the protective circuit of 4 described engine starting systems, it is characterized in that comprising the steps: under the ignition switch off state, car body controller control auxiliary switch by the control circuit communication; After the ignition switch closure, car body controller utilizes engine control module to obtain engine speed, and after engine speed surpassed desired speed, car body controller disconnected the loop of being controlled of auxiliary switch, thereby disconnects starting relay, and then disconnects starting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269260XA CN102852689A (en) | 2012-08-01 | 2012-08-01 | Protection circuit for engine starting system and protection strategy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269260XA CN102852689A (en) | 2012-08-01 | 2012-08-01 | Protection circuit for engine starting system and protection strategy |
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| Publication Number | Publication Date |
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| CN102852689A true CN102852689A (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210269260XA Pending CN102852689A (en) | 2012-08-01 | 2012-08-01 | Protection circuit for engine starting system and protection strategy |
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| CN (1) | CN102852689A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437892A (en) * | 2013-09-04 | 2013-12-11 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Starting method and system of engine |
| CN105240183A (en) * | 2015-11-02 | 2016-01-13 | 北京新能源汽车股份有限公司 | Control method and device for starting motor |
| CN105927449A (en) * | 2016-05-05 | 2016-09-07 | 安徽江淮汽车股份有限公司 | Engine starting system and method |
| US10808671B2 (en) * | 2017-03-30 | 2020-10-20 | Randy Greene | Ignition safety control |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5742137A (en) * | 1994-07-05 | 1998-04-21 | Chrysler Corporation | Starter motor control circuit and method |
| JP2009191653A (en) * | 2008-02-12 | 2009-08-27 | Hino Motors Ltd | Vehicular starter protection device |
| CN201843718U (en) * | 2010-10-21 | 2011-05-25 | 浙江吉利汽车研究院有限公司 | Protective control circuit of auto starting motor |
| CN202082027U (en) * | 2011-04-26 | 2011-12-21 | 龚文资 | Automobile protection circuit for preventing repeatedly starting |
| CN202176440U (en) * | 2011-07-14 | 2012-03-28 | 北汽福田汽车股份有限公司 | Startup circuit for vehicles |
-
2012
- 2012-08-01 CN CN201210269260XA patent/CN102852689A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5742137A (en) * | 1994-07-05 | 1998-04-21 | Chrysler Corporation | Starter motor control circuit and method |
| JP2009191653A (en) * | 2008-02-12 | 2009-08-27 | Hino Motors Ltd | Vehicular starter protection device |
| CN201843718U (en) * | 2010-10-21 | 2011-05-25 | 浙江吉利汽车研究院有限公司 | Protective control circuit of auto starting motor |
| CN202082027U (en) * | 2011-04-26 | 2011-12-21 | 龚文资 | Automobile protection circuit for preventing repeatedly starting |
| CN202176440U (en) * | 2011-07-14 | 2012-03-28 | 北汽福田汽车股份有限公司 | Startup circuit for vehicles |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437892A (en) * | 2013-09-04 | 2013-12-11 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Starting method and system of engine |
| CN103437892B (en) * | 2013-09-04 | 2016-03-09 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | The starting method of motor and system |
| CN105240183A (en) * | 2015-11-02 | 2016-01-13 | 北京新能源汽车股份有限公司 | Control method and device for starting motor |
| CN105240183B (en) * | 2015-11-02 | 2019-01-08 | 北京新能源汽车股份有限公司 | Control method and device for starting motor |
| CN105927449A (en) * | 2016-05-05 | 2016-09-07 | 安徽江淮汽车股份有限公司 | Engine starting system and method |
| US10808671B2 (en) * | 2017-03-30 | 2020-10-20 | Randy Greene | Ignition safety control |
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Application publication date: 20130102 |