CN208376536U - A kind of engine braking and retarder Associated brake control structure - Google Patents
A kind of engine braking and retarder Associated brake control structure Download PDFInfo
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- CN208376536U CN208376536U CN201820565328.1U CN201820565328U CN208376536U CN 208376536 U CN208376536 U CN 208376536U CN 201820565328 U CN201820565328 U CN 201820565328U CN 208376536 U CN208376536 U CN 208376536U
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- retarder
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- eecu
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Abstract
A kind of engine braking and retarder Associated brake control structure, including retarder ECU, engine EECU, bat-handle switch (1), fan clutch and exhaust brake valve, it is connected respectively by CAN bus with control line between the retarder ECU and engine EECU, the retarder ECU is connect with bat-handle switch (1), and the engine EECU is connect with fan clutch and exhaust brake valve respectively.It realizes engine braking (and/or exhaust brake) and retarder function while applying, meet the needs of engine braking (and/or exhaust brake) and retarder Associated brake.
Description
Technical field
The utility model relates to a kind of brake control architecture, more specifically to a kind of engine braking and retarder connection
Brake control architecture is closed, automotive electrical system design field is belonged to.
Background technique
Heavy vehicle under complicated operating condition, such as: long down hill braking, level road are frequently braked, and main brake of driving a vehicle is compared with one
As operating condition severity of braking be significantly increased, Retarder has that braking moment is big, braking is steady, noise is small, the service life is long, small in size
The advantages that, effectively reduce the pressure of main brake.Meanwhile engine braking (and/or exhaust brake) also can be realized effective control
The effect of speed.
But braked in the prior art according to retarder, then it can not achieve engine braking (and/or exhaust brake)；
If realizing engine braking (and/or exhaust brake), retarder braking can not achieve.Therefore, start currently, being not possible to realize
Mechanism moves (and/or exhaust brake) and retarder Associated brake, therefore is not able to satisfy large-tonnage heavy vehicle transportation demand；And it deposits
Lead to problems such as oil consumption high in braking.
Summary of the invention
The purpose of this utility model is that for cannot achieve in the prior art engine braking (and/or exhaust brake) and
Retarder Associated brake is not able to satisfy the deficiencies of large-tonnage heavy vehicle transportation demand, provides a kind of engine braking and slow
Device Associated brake control structure.
To achieve the above object, the technical solution of the utility model is: a kind of engine braking and retarder joint
Brake control architecture, including retarder ECU, engine EECU, bat-handle switch, fan clutch and exhaust brake valve, it is described
It is connected respectively by CAN bus with control line between retarder ECU and engine EECU, the retarder ECU is opened with handle
Connection connects, and the engine EECU is connect with fan clutch and exhaust brake valve respectively.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model realizes engine braking (and/or exhaust brake) and retarder function while applying, and meets
The demand of engine braking (and/or exhaust brake) and retarder Associated brake when large-tonnage heavy vehicle is transported for long-distance.
2, the utility model realizes engine braking (and/or exhaust brake), retarder function and electrical control electric fan simultaneously
The demand of application provides better security performance and fuel saving for user, meets the high request that user is fuel-efficient, safe.
Detailed description of the invention
Fig. 1 is the utility model circuit diagram.
Fig. 2 is control method flow chart in the utility model.
In figure, bat-handle switch 1.
Specific embodiment
The utility model is described in further detail below in conjunction with Detailed description of the invention and specific embodiment.
Referring to Fig. 1, a kind of engine braking and retarder Associated brake control structure, including retarder ECU, engine
EECU, bat-handle switch 1, fan clutch and exhaust brake valve；Pass through respectively between the retarder ECU and engine EECU
CAN bus is connected with control line, and the retarder ECU is connect with bat-handle switch 1, the engine EECU respectively with fan
Clutch is connected with exhaust brake valve.
Referring to Fig. 1, the bat-handle switch 1 has 4 gears, be respectively constant speed shelves, 33% grade, 66% grade, 100%(expire shelves)；
Constant speed shelves indicate that retarder exports constant speed, 33% grade of expression retarder output torque 33%, 66% grade of expression retarder output torque
66%, 100% grade of expression retarder output torque 100%.
Referring to Fig. 1, specifically, " power supply " the pin B of the retarder ECU connects power supply；" gear " of retarder ECU is managed
High level control interface, constant speed interface, 33% gear interface, 66% gear that foot A, 1,2,3,4 are coupled with bat-handle switch 1 connect
Mouth, 100%(expire shelves) gear interface；" braking " pin 7 of retarder ECU exports brake signal；" bus " of retarder ECU is managed
Foot 6,5 indicates respectively CAN L, CAN H.
Referring to Fig. 1, specifically, the pin 3,4 of the engine EECU controls fan clutch；The pin of engine EECU
5,6 control exhaust brake valve；" braking " pin 7 of engine EECU receives brake signal；" bus " pin of engine EECU
8,9 CAN L, CAN H are indicated respectively.
Referring to Fig. 1, when work, engine EECU passes through CAN bus and receives 1 gear information message of bat-handle switch；Work as handle
At full grade of switch 1, engine EECU receives the brake signal of bus gear information message and retarder ECU output simultaneously, this
When engine braking (or exhaust brake) start to work；The fan clutch of engine EECU control simultaneously is opened, and electrical control electric fan is opened
Beginning work, when retarder torque is greater than 0, fan is in turns state entirely, and torque will postpone 5s after being restored to 0, and fan stops work
Make, no longer rotate.
Referring to fig. 2, the control method of this engine braking and retarder Associated brake control structure, including following step
It is rapid:
Step 1, vehicle launch, igniting lock key return to ON grades, and retarder ECU is powered on.
Bat-handle switch 1 is got to any gear by step 2, and retarder ECU receives the gear signal that bat-handle switch 1 is sent
And message is sent by CAN bus, engine EECU, engine EECU is given to receive the bus gear information report that retarder ECU is sent
Text；Gear herein is respectively constant speed, 33% gear, 66% gear, 100% gear.When bat-handle switch 1 is got to full shelves, slowly
The device ECU gear signal that output engine brake signal and bat-handle switch 1 are sent simultaneously, engine EECU receive retarder ECU
The brake signal of output simultaneously receives bus gear information message, and engine EECU controls exhaust brake valve and opens, braking function
It opens.
Further, include the steps that in the step two following: when bat-handle switch 1 gets to full shelves and retarder power
When square > 0, engine EECU is opened according to the bus gear information message control fan clutch received, electrical control electric fan function
It opens；When retarder torque is restored to 0, engine EECU postpones to control for 5 seconds according to the bus gear information message received
Fan clutch disconnects, and electrical control electric fan function is closed.
Referring to Fig. 1 to Fig. 2, retarder ECU receives the different stalls signal of bat-handle switch 1 in the utility model, sends CAN
Bus message simultaneously exports brake signal；Control unit of engine EECU receives brake signal and CAN bus information；Engine EECU
Expire shelves information according to retarder, controls the opening and closing of electrical control electric fan.When bat-handle switch 1 is braked when gear is 100% state
It works at the same time；Engine EECU is when 1 gear of bat-handle switch is 100% state and retarder torque is greater than 0, and fan turns entirely, torque
Delay 5s exits fan and turns entirely after being restored to 0.Therefore, the utility model realizes engine braking (and/or exhaust brake), electricity
Control fan and retarder function are applied simultaneously, realize when retarder works that engine braking (and/or exhaust brake) can also be with
Work, bat-handle switch 1, which expire, to be postponed 5s after fan is opened, retarder torque is restored to 0 when shelves and retarder torque are greater than 0 and exits wind
The function of turning entirely is fanned, engine braking (and/or exhaust brake) and retarder connection when meeting the long-distance transport of large-tonnage heavy vehicle
Close the demand of braking.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, above structure
It all shall be regarded as belonging to the protection scope of the utility model.
Claims (1)
1. a kind of engine braking and retarder Associated brake control structure, it is characterised in that: including retarder ECU, engine
EECU, bat-handle switch (1), fan clutch and exhaust brake valve lead to respectively between the retarder ECU and engine EECU
CAN bus is crossed to connect with control line, the retarder ECU is connect with bat-handle switch (1), the engine EECU respectively with
Fan clutch is connected with exhaust brake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820565328.1U CN208376536U (en) | 2018-04-20 | 2018-04-20 | A kind of engine braking and retarder Associated brake control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820565328.1U CN208376536U (en) | 2018-04-20 | 2018-04-20 | A kind of engine braking and retarder Associated brake control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208376536U true CN208376536U (en) | 2019-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820565328.1U Active CN208376536U (en) | 2018-04-20 | 2018-04-20 | A kind of engine braking and retarder Associated brake control structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208376536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501735A (en) * | 2018-04-20 | 2018-09-07 | 东风商用车有限公司 | A kind of engine braking and retarder Associated brake control structure and its control method |
-
2018
- 2018-04-20 CN CN201820565328.1U patent/CN208376536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501735A (en) * | 2018-04-20 | 2018-09-07 | 东风商用车有限公司 | A kind of engine braking and retarder Associated brake control structure and its control method |
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