CN102536472B - Auxiliary braking method for unit pump electric control system of diesel - Google Patents
Auxiliary braking method for unit pump electric control system of diesel Download PDFInfo
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- CN102536472B CN102536472B CN201110457799.3A CN201110457799A CN102536472B CN 102536472 B CN102536472 B CN 102536472B CN 201110457799 A CN201110457799 A CN 201110457799A CN 102536472 B CN102536472 B CN 102536472B
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- exhaust brake
- braking
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- engine braking
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Abstract
The present invention relates to a kind of auxiliary braking method for unit pump electric control system of diesel, it is characterized in that: demarcated by software and realize exhaust brake switch, the configuration of engine braking switching logic level enables, demarcated by software and whether drive additional brake light when exhaust brake is set with the arbitrary effect of engine braking or effect simultaneously, demarcated by software and realize above-mentioned exhaust brake and three kinds of car load configuration needs of engine braking, formulate exhaust brake lamp startup self-detection function, when having exhaust brake valve fault, Brake lamp and trouble light select function, during engine braking relay fault, Brake lamp and trouble light select function；I.e. in same software version, can be demarcated by software, exhaust brake is set and engine braking activates and exit criteria, meet different type of machines car load auxiliary braking demand.
Description
Technical field
The present invention relates to a kind of auxiliary braking method for unit pump electric control system of diesel, especially have only to software and demarcate i.e.
Can reach exhaust brake and engine braking configuration requirement, it is achieved car load auxiliary braking demand.
Background technology
Generally, when vehicle needs to slow down, driver uses foot brake or uses gear shift low speed to play braking action, reaches
Purpose to vehicle deceleration.But, vehicle, when lower long slope, frequently uses foot brake and there will be brake-fade phenomenon, change
The low-grade overspeed operating that electromotor can be made passive, safety and service life (such as brake wear) to vehicle are brought certain
Impact.
Summary of the invention
It is an object of the invention to provide a kind of auxiliary braking method for unit pump electric control system of diesel, i.e. in same software version
In Ben, can be demarcated by software, exhaust brake is set and engine braking activates and exit criteria, meet different type of machines car load auxiliary
Help braking requirement.
The technical scheme is that and be achieved in that: auxiliary braking method for unit pump electric control system of diesel, its feature
It is: demarcated by software and realize exhaust brake switch, the configuration of engine braking switching logic level enables, and is demarcated by software
Auxiliary braking display lamp whether is driven, by software mark when exhaust brake is set with the arbitrary effect of engine braking or effect simultaneously
Surely realize above-mentioned exhaust brake and three kinds of car load configuration needs of engine braking, formulate auxiliary braking display lamp startup self-detection merit
Can, when having exhaust brake valve fault, auxiliary braking display lamp and SES Service Engine Soon select function, and engine braking continues
During apparatus failure, auxiliary braking display lamp and SES Service Engine Soon select function；Activate and exit exhaust brake and electromotor
Braking condition, 1) when the rotating speed of electromotor is higher than 1000 revs/min, 2) release the clutch pedal；3) gas pedal is unclamped；At this moment
Exhaust brake indicator lamp can be lighted, and engine control system can activate exhaust brake function according to operating mode, if be unsatisfactory for wherein
Either condition then exits exhaust brake and engine braking, and owing to type is different, exhaust brake is each with engine braking demand not
Identical, it is specifically divided into following three kinds of configuring conditions: during (1) exhaust brake switch Guan Bi, meet activation condition, Engine ECU will
Drive exhaust braking electromagnetic valve, activate exhaust brake function, light auxiliary braking display lamp simultaneously；(2) exhaust brake switch is closed
During conjunction, meeting activation condition, Engine ECU will drive exhaust braking electromagnetic valve and engine braking relay, activate aerofluxus system
Move and engine braking function, light shared auxiliary braking display lamp simultaneously；(3), during exhaust brake switch Guan Bi, meet and swash
The condition of living, Engine ECU will drive exhaust braking electromagnetic valve, activate exhaust brake function, light auxiliary braking display lamp, when sending out
Motivation switch Guan Bi, and exhaust brake switch disconnects, and meets activation condition, Engine ECU will drive exhaust braking electromagnetic valve and
Engine braking relay, activates exhaust brake function and engine braking function simultaneously, lights auxiliary braking display lamp；Auxiliary
Brake indicator lamp, SES Service Engine Soon are driven by ECU low level, and pilot lamp power derives from car load power supply.
The positive effect of the present invention is the advantage of auxiliary braking method for unit pump electric control system of diesel general design of software
It is not change the hardware configuration such as pin definitions, wire harness, it is only necessary to use software demarcation to realize exhaust brake and engine braking is joined
Put demand.Exhaust brake has been supplied in unit pump electric control system of diesel with the auxiliary braking method of engine braking, and becomes
For bright spot at the one of this electric-control system.Unit pump electric control system of diesel application on car load has been broken foreign vendor and has been led at this
The monopolization in territory, produces in batches the most.
Accompanying drawing explanation
Fig. 1 is the ECU hardware connection figure of patent of the present invention.
Fig. 2 is that ECU drives the dynamic brake light circuit of row.
Fig. 3 is that ECU drives engine failure circuit for lamp.
Fig. 4 is to meet exhaust brake and the control logic of engine braking car load three kinds of demands of configuration.
Detailed description of the invention
The invention will be further described in explanation below in conjunction with the accompanying drawings: as shown in Figure 1,2,3, 4, diesel engine single body pump is automatically controlled
System supplymentary braking method, it is characterised in that: demarcated by software and realize exhaust brake switch, engine braking switching logic electricity
Whether flat configuration enables, drive auxiliary when arranging exhaust brake effect arbitrary with engine braking or effect simultaneously by software demarcation
Help brake indicator lamp, demarcated by software and realize above-mentioned exhaust brake and three kinds of car load configuration needs of engine braking, formulate auxiliary
Help brake indicator lamp startup self-detection function, auxiliary braking display lamp and SES Service Engine Soon when there is exhaust brake valve fault
Selecting function, during engine braking relay fault, auxiliary braking display lamp and SES Service Engine Soon select function；Activate
With exit exhaust brake and engine braking condition, 1) rotating speed of electromotor higher than 1000 revs/min time, 2) loosen the clutch and step on
Plate；3) gas pedal is unclamped；At this moment exhaust brake indicator lamp can be lighted, and engine control system can activate aerofluxus system according to operating mode
Dynamic function, if being unsatisfactory for any of which condition, exits exhaust brake and engine braking, owing to type is different, and exhaust brake
Different with engine braking demand, it is specifically divided into following three kinds of configuring conditions: during (1) exhaust brake switch Guan Bi, meet
Activation condition, Engine ECU will drive exhaust braking electromagnetic valve, activate exhaust brake function, light auxiliary braking instruction simultaneously
Lamp；(2) during exhaust brake switch Guan Bi, meeting activation condition, Engine ECU is by driving exhaust braking electromagnetic valve and starts mechanism
Motor type relay, activates exhaust brake and engine braking function, lights shared auxiliary braking display lamp simultaneously；(3) aerofluxus system
During dynamic switch Guan Bi, meeting activation condition, Engine ECU will drive exhaust braking electromagnetic valve, activate exhaust brake function, light
Auxiliary braking display lamp, when tail-off closes, and exhaust brake switch disconnects, and meets activation condition, and Engine ECU will be driven
Dynamic exhaust braking electromagnetic valve and engine braking relay, activate exhaust brake function and engine braking function simultaneously, light
Auxiliary braking display lamp；Auxiliary braking display lamp, SES Service Engine Soon are driven by ECU low level, and pilot lamp power comes
Come from car load power supply.
Exhaust braking electromagnetic valve: Engine ECU receives exhaust brake switch closure signal, ECU drives high-power diesel
Machine exhaust manifold and exhaustor junction exhaust brake valve, cause the vexed car of electromotor thus reach braking effect, engine braking
Relay: Engine ECU receives exhaust brake switch closure signal, Engine ECU drives engine braking executor, piston
Moving up and down and all produced brake force by air-flow damping, auxiliary braking display lamp, SES Service Engine Soon are by the low electricity of ECU
Put down and drive, and pilot lamp power derives from car load power supply.Circuit diagram is as above :+termination car load power supply ,-termination ECU.
1) during exhaust brake switch Guan Bi, meeting activation condition, Engine ECU will drive exhaust brake valve, activate aerofluxus
Braking function, lights exhaust brake lamp simultaneously；
2) during exhaust brake switch Guan Bi, meeting activation condition, Engine ECU is by driving exhaust brake valve and starts mechanism
Motor type relay, activates exhaust brake and engine braking function, lights shared exhaust brake lamp simultaneously；
3) during exhaust brake switch Guan Bi, meeting activation condition, Engine ECU will drive exhaust brake valve, activate aerofluxus
Braking function, lights exhaust brake lamp；
4) when engine braking switch Guan Bi, and exhaust brake switch disconnects, and meets activation condition, and Engine ECU will be driven
Dynamic exhaust brake valve and engine braking relay, activate exhaust brake and engine braking function simultaneously, light exhaust brake
Lamp.
When using exhaust brake function, variator must not be in neutral position on gear.Exhaust brake merit
After activating, electromotor can stop oil spout.When using exhaust brake function, it is also possible to brake pedal uses routine simultaneously
Brakes.Auxiliary braking can not be entered during cruise.
Claims (1)
1. auxiliary braking method for unit pump electric control system of diesel, it is characterised in that: realize exhaust brake by software demarcation and open
Close, the configuration of engine braking switching logic level enables, and is demarcated by software and arranges exhaust brake and the arbitrary work of engine braking
With or simultaneously effect time whether drive auxiliary braking display lamp, by software demarcate realize above-mentioned exhaust brake and engine braking
Three kinds of car load configuration needs, formulate auxiliary braking display lamp startup self-detection function, auxiliary braking when having exhaust brake valve fault
Display lamp and SES Service Engine Soon select function, auxiliary braking display lamp and electromotor during engine braking relay fault
Malfunction indicator lamp selects function；Activate and exit exhaust brake and engine braking condition, 1) rotating speed of electromotor is higher than 1000
Rev/min time, 2) release the clutch pedal；3) gas pedal is unclamped；At this moment exhaust brake indicator lamp can be lighted, and electromotor controls
System can activate exhaust brake function according to operating mode, if being unsatisfactory for any of which condition, exiting exhaust brake and starting mechanism
Dynamic, owing to type is different, exhaust brake is different with engine braking demand, is specifically divided into following three kinds of configuring conditions: (1)
During exhaust brake switch Guan Bi, meeting activation condition, Engine ECU will drive exhaust braking electromagnetic valve, activate exhaust brake merit
Can, light auxiliary braking display lamp simultaneously；(2) during exhaust brake switch Guan Bi, meeting activation condition, Engine ECU will drive
Exhaust braking electromagnetic valve and engine braking relay, activate exhaust brake and engine braking function, light shared simultaneously
Auxiliary braking display lamp；(3) during exhaust brake switch Guan Bi, meeting activation condition, Engine ECU will drive exhaust brake electromagnetism
Valve, activates exhaust brake function, lights auxiliary braking display lamp, and when tail-off closes, and exhaust brake switch disconnects, full
Foot activation condition, Engine ECU will drive exhaust braking electromagnetic valve and engine braking relay, activate exhaust brake merit simultaneously
Auxiliary braking display lamp can be lighted with engine braking function；Auxiliary braking display lamp, SES Service Engine Soon are low by ECU
Level drives, and pilot lamp power derives from car load power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110457799.3A CN102536472B (en) | 2011-12-31 | 2011-12-31 | Auxiliary braking method for unit pump electric control system of diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110457799.3A CN102536472B (en) | 2011-12-31 | 2011-12-31 | Auxiliary braking method for unit pump electric control system of diesel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536472A CN102536472A (en) | 2012-07-04 |
| CN102536472B true CN102536472B (en) | 2016-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110457799.3A Active CN102536472B (en) | 2011-12-31 | 2011-12-31 | Auxiliary braking method for unit pump electric control system of diesel |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742280A (en) * | 2013-12-31 | 2014-04-23 | 东风康明斯发动机有限公司 | Device and method for automatically selecting brake power of electronic control diesel engine brake |
| CN107035541A (en) * | 2015-08-06 | 2017-08-11 | 湖南汽车制造有限责任公司 | A kind of engine exhaust and brake inter-linked controlling method and system |
| KR20180007411A (en) * | 2016-07-13 | 2018-01-23 | 두산인프라코어 주식회사 | System and method for superheating preventing of axle using engine exhaust brake |
| CN115450767A (en) * | 2022-10-20 | 2022-12-09 | 三一电动车科技有限公司 | Engine exhaust brake control method, controller and working machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6536408B1 (en) * | 2001-10-09 | 2003-03-25 | Detroit Diesel Corporation | Engine brake control integration with vehicle service brakes |
| CN1951724A (en) * | 2006-11-16 | 2007-04-25 | 东风汽车有限公司 | Automobile brake lamp control method and device |
| JP2008240623A (en) * | 2007-03-27 | 2008-10-09 | Nissan Diesel Motor Co Ltd | Exhaust brake device |
| CN102220907A (en) * | 2010-04-19 | 2011-10-19 | 上海尤顺汽车部件有限公司 | Engine combined brake control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094714B (en) * | 2004-11-22 | 2014-01-15 | 雅各布斯车辆系统公司 | Apparatus and method for controlling exhaust pressure |
-
2011
- 2011-12-31 CN CN201110457799.3A patent/CN102536472B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6536408B1 (en) * | 2001-10-09 | 2003-03-25 | Detroit Diesel Corporation | Engine brake control integration with vehicle service brakes |
| CN1951724A (en) * | 2006-11-16 | 2007-04-25 | 东风汽车有限公司 | Automobile brake lamp control method and device |
| JP2008240623A (en) * | 2007-03-27 | 2008-10-09 | Nissan Diesel Motor Co Ltd | Exhaust brake device |
| CN102220907A (en) * | 2010-04-19 | 2011-10-19 | 上海尤顺汽车部件有限公司 | Engine combined brake control method |
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| Publication number | Publication date |
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| CN102536472A (en) | 2012-07-04 |
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