CN208324909U - A kind of big slope starting control system of novel 4 wheel driven pure electric coach - Google Patents
A kind of big slope starting control system of novel 4 wheel driven pure electric coach Download PDFInfo
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- CN208324909U CN208324909U CN201820984523.8U CN201820984523U CN208324909U CN 208324909 U CN208324909 U CN 208324909U CN 201820984523 U CN201820984523 U CN 201820984523U CN 208324909 U CN208324909 U CN 208324909U
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- automatically controlled
- guard
- motor
- forerunner
- semiaxis
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model discloses a kind of novel big slope starting control systems of 4 wheel driven pure electric coach, including ramp sensor, entire car controller, CAN bus, precursor motor, rear-guard motor, power battery, forerunner is automatically controlled, rear-guard is automatically controlled, dynamic wire harness and semiaxis, the ramp sensor is connected by CAN bus with entire car controller, entire car controller is corresponding automatically controlled with forerunner by CAN bus and rear-guard is automatically controlled is connected, forerunner is automatically controlled to be connected with precursor motor, rear-guard is automatically controlled to be connected with rear-guard motor, power battery is corresponding automatically controlled with forerunner by dynamic wire harness and rear-guard is automatically controlled is connected, precursor motor is connected by differential mechanism with two semiaxis, rear-guard motor is connected by differential mechanism with two semiaxis.The utility model can effectively reduce the difficulty of driver driving operation, can make full use of the predisposed condition of 4 wheel driven to guarantee the comfort driven.
Description
Technical field:
The utility model relates to a kind of novel big slope starting control systems of 4 wheel driven pure electric coach.
Background technique:
Existing pure electric coach must will touch on the brake in big slope starting-up process, and be in this case, anti-to slip by slope
Function cannot be activated.That is driver is in the state that touches on the brake and also to step on the throttle, and such case is for pure electric vehicle visitor
Vehicle is not allow to occur, while brake pedal and gas pedal vehicle will appear failure, therefore there is presently no appearance
The big hill start step strategy of 4 wheel driven pure electric coach.
The anti-function that slips by slope of pure electric coach is not particularly suited for big hill start step at present, and current way is specific as follows:
It is as follows that vehicle enters the anti-condition slipped by slope:
1) vehicle Ready is effective；
2) D grades/R grades effectively；
3) parking brake is invalid；
4) braking is invalid；
5) throttle is invalid；
6) motor speed is opposite with gear rotating speed of target；
The above are and relationship.When vehicle meets above-mentioned condition, vehicle, which is defaulted as entering, to be prevented slipping by slope function, automatically controlled adaptive
Torque is answered to make vehicle in the state not come down and then reach the anti-function of slipping by slope, is then exited when there is throttle signal anti-slip
Slope.The process is the need for the response time, that is to say, that exiting the anti-torque for slipping by slope response entire car controller sending is sometimes
Between be spaced, and at this time vehicle be in big hill start step inherently slide backward suddenly.The drawbacks of situation, is mainly as follows: vehicle start mistake
Journey is unstable, it is desirable that driver operates horizontal high；It causes energy loss serious, serious (vehicle rollback process is damaged to motor
Need to be implemented advance large torque), in view of the drawback of the above strategy, propose a kind of big hill start step control of novel 4 wheel driven pure electric coach
System processed.
Utility model content:
The utility model is to provide a kind of novel 4 wheel driven pure electric vehicle visitor to solve the above-mentioned problems of the prior art
The big slope starting control system of vehicle.
Technical solution used by the utility model has: a kind of novel big slope starting control system of 4 wheel driven pure electric coach,
Including ramp sensor, entire car controller, CAN bus, precursor motor, rear-guard motor, power battery, forerunner is automatically controlled, rear-guard is electric
Control, dynamic wire harness and semiaxis, the ramp sensor are connected by CAN bus with entire car controller, and entire car controller passes through CAN
Bus is corresponding automatically controlled with forerunner and rear-guard is automatically controlled is connected, and forerunner is automatically controlled to be connected with precursor motor, and rear-guard is automatically controlled with rear-guard motor phase
Even, power battery is corresponding automatically controlled with forerunner by dynamic wire harness and rear-guard is automatically controlled is connected, and precursor motor passes through differential mechanism and two
Semiaxis is connected, and rear-guard motor is connected by differential mechanism with two semiaxis.
Further, the output voltage of the power battery is 576V.
The utility model has the following beneficial effects:
The utility model can effectively reduce the difficulty of driver driving operation, can make full use of the congenital item of 4 wheel driven
Part come guarantee drive comfort.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model control system.
Fig. 2 is the energy diagram that the utility model drives procedures system.
Fig. 3 is that the big hill start of four-wheel drive cars walks force analysis.
Fig. 4 is that the big hill start of four-wheel drive cars walks schematic diagram.
In figure:
1, ramp sensor；2, entire car controller；3, CAN bus；4, precursor motor；5, rear-guard motor；6, power battery；
7, forerunner is automatically controlled；8, rear-guard is automatically controlled；9, dynamic wire harness；10, semiaxis；F: holding power of the ramp to vehicle；G: vehicle self gravity
Component on the slope；T: effective traction；F: wind resistance and frictional force；A: the gradient；1: ramp sensor 11: 4-wheel driven car
?.
Specific embodiment:
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1 to Figure 4, a kind of novel big slope starting control system of 4 wheel driven pure electric coach of the utility model, including ramp
Sensor 1, entire car controller 2, CAN bus 3, precursor motor 4, rear-guard motor 5, power battery 6, forerunner are automatically controlled 7, rear-guard is automatically controlled
8, dynamic wire harness 9 and semiaxis 10, ramp sensor 1 are connected by CAN bus 3 with entire car controller 2, and entire car controller 2 passes through
The correspondence of CAN bus 3 is connected with forerunner automatically controlled 7 and rear-guard automatically controlled 8, and forerunner automatically controlled 7 is connected with precursor motor 4, and rear-guard automatically controlled 8 is with after
It drives motor 5 to be connected, power battery 6 is connected by the correspondence of dynamic wire harness 9 with forerunner automatically controlled 7 and rear-guard automatically controlled 8, and precursor motor 4 is logical
It crosses differential mechanism to be connected with two semiaxis 10, rear-guard motor 5 is connected by differential mechanism with two semiaxis 10.
The output voltage of power battery 6 is 576V.
The basic functional principle of the utility model is as follows:
1) it is specifically defined the range of gradient a first, is as follows:
2) big hill start walks torque arithmetic, as follows:
As shown in figure 3, vehicle is to remain static in the precondition that big hill start step does not buffer, that just be must satisfy
The component of f=T, i.e. motor driving torque and complete vehicle quality balance each other with resistance, need to meet the following conditions:
F=T is 1.
Transmission efficiency is indicated with η, Tm indicates that motor actual torque, T1/T2 respectively indicate front and back motor actual torque, vehicle
Gross mass M, component on the slope are that Mg then has:
T=η * Tm Tm=T1+T2 T=f+Mg is 3.
Remarks: the front and back parameter of electric machine is completely the same.
3) big hill start step strategy:
When entire car controller receives ramp sensor gradient a >=8 °, entire car controller starts to wake up big hill start step shape
State, when current, rear-guard motor revolving speed=0, vehicle meets big hill start step condition:
(1) D grades effectively；
(2)a≥8°；
(3) motor speed is 0；
(4) R grades it is invalid；
The above are and relationship, vehicle walks into big hill start, and R grade effectively release big hill start and walk, and accelerator and brake signal cannot
Simultaneously effectively.Vehicle be in big hill start step state, in spite of have parking brake signal, brake signal and throttle signal VCU all by
(theoretical value, actually subject to sample car debugging) is executed according to T torque, and vehicle is made to remain static.Journey of correcting one's mistakes needs to carry out one
Lower judgement:
(1) T is less than single motor peak torque Tt, and vehicle sends single motor work (work of rear-guard motor)；
(2) T is more than or equal to motor peak torque Tt, and vehicle is averagely allocated to front and back motor according to vehicle aggregate demand torque；
When in uphill starting condition, vehicle control when the required torque of throttle signal is less than the torque for meeting stationary vehicle
Device processed is then not responding to the signal, only can be performed when demand torque is greater than vehicle stationary state demand torque.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as
The protection scope of the utility model.
Claims (2)
1. a kind of big slope starting control system of novel 4 wheel driven pure electric coach, it is characterised in that: including ramp sensor (1), whole
Vehicle controller (2), CAN bus (3), precursor motor (4), rear-guard motor (5), power battery (6), forerunner automatically controlled (7), rear-guard electricity
(8), dynamic wire harness (9) and semiaxis (10) are controlled, the ramp sensor (1) passes through CAN bus (3) and entire car controller (2) phase
Even, entire car controller (2) is connected by CAN bus (3) correspondence with forerunner automatically controlled (7) and rear-guard automatically controlled (8), and forerunner is automatically controlled (7)
It is connected with precursor motor (4), rear-guard automatically controlled (8) is connected with rear-guard motor (5), and power battery (6) is corresponding by dynamic wire harness (9)
It is connected with forerunner automatically controlled (7) and rear-guard automatically controlled (8), precursor motor (4) is connected by differential mechanism with two semiaxis (10), rear-guard electricity
Machine (5) is connected by differential mechanism with two semiaxis (10).
2. the novel big slope starting control system of 4 wheel driven pure electric coach as described in claim 1, it is characterised in that: the power
The output voltage of battery (6) is 576V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820984523.8U CN208324909U (en) | 2018-06-26 | 2018-06-26 | A kind of big slope starting control system of novel 4 wheel driven pure electric coach |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820984523.8U CN208324909U (en) | 2018-06-26 | 2018-06-26 | A kind of big slope starting control system of novel 4 wheel driven pure electric coach |
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| Publication Number | Publication Date |
|---|---|
| CN208324909U true CN208324909U (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820984523.8U Active CN208324909U (en) | 2018-06-26 | 2018-06-26 | A kind of big slope starting control system of novel 4 wheel driven pure electric coach |
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| CN (1) | CN208324909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725259A (en) * | 2018-06-26 | 2018-11-02 | 南京恒天领锐汽车有限公司 | A kind of big slope starting control system of novel 4 wheel driven pure electric coach |
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2018
- 2018-06-26 CN CN201820984523.8U patent/CN208324909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725259A (en) * | 2018-06-26 | 2018-11-02 | 南京恒天领锐汽车有限公司 | A kind of big slope starting control system of novel 4 wheel driven pure electric coach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190517 Address after: 421000 Hengdong Economic Development Zone, Hengyang City, Hunan Province (Dapu Town Industrial Park) Patentee after: Hengyang Zhi Tram Co., Ltd. Address before: 211200 No. 18 Zhongxing East Road, Lishui Economic Development Zone, Nanjing City, Jiangsu Province Patentee before: Nanjing Heng Tian Ling Rui Automobile Co., Ltd. |
|
| TR01 | Transfer of patent right |