CN109017638A - A kind of four-wheel-driven control system of new-energy automobile - Google Patents
A kind of four-wheel-driven control system of new-energy automobile Download PDFInfo
- Publication number
- CN109017638A CN109017638A CN201811066242.5A CN201811066242A CN109017638A CN 109017638 A CN109017638 A CN 109017638A CN 201811066242 A CN201811066242 A CN 201811066242A CN 109017638 A CN109017638 A CN 109017638A
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- Prior art keywords
- wheel
- motor
- control system
- driven
- vcu
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of four-wheel-driven control systems of new-energy automobile, including front-wheel, rear-wheel and VCU control system, the front-wheel includes drive axle, steering wheel, front reduction gear differential mechanism and preceding driving motor, the front reduction gear differential mechanism and preceding driving motor are all set in the side of drive axle, pass through preceding driving motor and rear driving motor driven front-wheel and rear-wheel respectively, the power of former and later two motors is different, wherein powerful motor is as active force, can independent drive vehicles traveling, wherein low-power machine is as stand-by motor, drive other two wheel, it is used as auxiliary power, former and later two motors and electric machine controller are monitored using VCU control system, on the basis of electric car has Monitor docking platform, based on electric car four-wheel-driven control system, one of motor or electric machine controller damage When, VCU control system can control remaining minimum motor and its controller traveling for one group, so that vehicle is got rid of poverty, and issue various alarm signals.
Description
Technical field
The present invention relates to New-energy electric vehicle technical field, specially a kind of four-wheel-driven control system of new-energy automobile.
Background technique
As the universal and market and user of new-energy automobile are to vehicle dynamic property and Eco-power demand, vehicle looks forward to face
Face increasing challenge.The only preceding drive system of general new-energy automobile, this results in two problems: 1, being unable to satisfy to dynamic
Power and climbing property require relatively high client；2, when motor or electric machine controller damage, vehicle can not walk, can only trailer
It goes home or to maintenace point.In view of the above problems, the present invention proposes a kind of 4 wheel driven control model of new-energy automobile, solve
State problem.In addition, existing new energy 4 wheel driven vehicle, former and later two powers of motor are identical, and control mode is: when driving
It operates synchronously, will cause the superposition of two electric efficiencies loss in this way, meanwhile, motor asynchronous problem in front and back is difficult to solve, and makes
At course continuation mileage serious curtailment.
Summary of the invention
The purpose of the present invention is to provide a kind of four-wheel-driven control systems of new-energy automobile, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of four-wheel-driven control system of new-energy automobile, packet
Front-wheel, rear-wheel and VCU control system are included, the front-wheel includes drive axle, steering wheel, front reduction gear differential mechanism and preceding driving electricity
Machine, the front reduction gear differential mechanism and preceding driving motor are all set in the side of drive axle, and the steering wheel is set to preceding driving
The lower section of axis, drive axle both ends are sequentially connected with idler wheel, and the rear-wheel includes rear drive shaft, rear driving motor and rear deceleration
Differential mechanism, the both ends of the rear drive shaft are sequentially connected with idler wheel, and the rear driving motor and rear deceleration differential are respectively provided with
In the side of rear drive shaft；
The VCU control system includes VCU control unit, preceding MCU, rear MCU, front motor, rear motor, speed monitoring module and shelves
Position monitoring modular, preceding MCU and rear MCU have been electrically connected on the output end of the VCU control unit, and the VCU control is single
Speed monitoring module and gear monitoring modular has been electrically connected in the input terminal of member.
Preferably, the preceding MCU and rear MCU is micro control unit, is protected between the output end and front motor input terminal of preceding MVU
Electrical transmission is held, electrically transmission is kept between the output end of rear MCU and the input terminal of rear motor.
Preferably, the velocity measuring module is used to monitor the revolving speed of front wheels and rear wheels, and the gear monitoring modular is used for
Monitor the transformation of gear.
Preferably, based on electric car four-wheel-driven control system, starting accelerates or climbing, when the small Mr. Yu of speed is worth, drives
4 wheel driven mode may be selected in person, improves power performance, and when the big Mr. Yu's value of speed, VCU control system automatically cuts off auxiliary power
Source, to reduce the energy consumption of vehicle.
Preferably, starting accelerate or climbing speed be less than 20km/h(or or 30,40,50,60,70,100km/h etc. other
Vehicle speed value) when, driver may be selected 4 wheel driven mode, improve power performance, when speed be greater than 20km/h(or 30,40,50,60,
70, his vehicle speed value such as 100km/h) when, VCU control system automatically cuts off auxiliary power source according to obscurity boundary calculating, to reduce
The energy consumption of vehicle.
Preferably, the power of former and later two motors is different, wherein powerful motor can independently drive as active force
Dynamic vehicle driving, wherein low-power machine drives other two wheel, uses as auxiliary power as stand-by motor, application
VCU is monitored former and later two motor driven operating conditions and vehicle running state.
Preferably, based on electric car four-wheel-driven control system, computer program can be set, motor driven is detected by VCU
Operating condition and vehicle running state start automatically or close some motor, to allow driver to reach best traveling experience.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention setting rationally, functional, have with
Lower advantage:
1. respectively by preceding driving motor and rear driving motor driven front-wheel and rear-wheel, the power of former and later two motors is different,
In powerful motor as active force, can independent drive vehicles traveling, wherein low-power machine is used as stand-by motor, and driving is separately
Outer two wheels, use as auxiliary power, supervise using VCU control system to former and later two motors and electric machine controller
Control, on the basis of electric car has Monitor docking platform, based on electric car four-wheel-driven control system, one of them is electric
When machine or electric machine controller damage, VCU control system can control remaining minimum motor and its controller traveling for one group, make
Vehicle is got rid of poverty, and issues various alarm signals；
2. issuing alarm signal includes automatically opening double sudden strain of a muscle alarm signals of vehicle and issuing fault alarm and remotely cry for help etc. to believe
Number；
3. starting accelerates or is 4 wheel driven mode when climbing, when speed is greater than some value, VCU(entire car controller is hereinafter referred to as
VCU rear MCU(micro-control unit hereinafter referred to as MCU) is automatically shut down), a main motor traveling is only used, the warp of vehicle is improved
Ji property.
Detailed description of the invention
Fig. 1 is fore wheel structure schematic diagram of the present invention；
Fig. 2 is rear-wheel structure schematic diagram of the present invention；
Fig. 3 is VCU control system figure of the present invention.
In figure: drive axle 1, steering wheel 2, front reduction gear differential mechanism 3, preceding driving motor 4, rear drive shaft 5, rear driving motor
6, rear deceleration differential 7.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of four-wheel-driven control system of new-energy automobile, including
Front-wheel, rear-wheel and VCU control system, front-wheel include drive axle 1, steering wheel 2, front reduction gear differential mechanism 3 and preceding driving motor 4,
Front reduction gear differential mechanism 3 and preceding driving motor 4 are all set in the side of drive axle 1, and steering wheel 2 is set under drive axle 1
Side, 1 both ends of drive axle are sequentially connected with idler wheel, and rear-wheel includes rear drive shaft 5, rear driving motor 6 and rear deceleration differential
7, the both ends of rear drive shaft 5 are sequentially connected with idler wheel, and rear driving motor 6 and rear deceleration differential 7 are arranged at rear drive shaft 5
Side；
VCU control system includes VCU control unit, preceding MCU, rear MCU, front motor, rear motor, speed monitoring module and gear prison
Module is surveyed, preceding MCU and rear MCU, the input terminal point of VCU control unit have been electrically connected on the output end of VCU control unit
It is not electrically connected with speed monitoring module and gear monitoring modular.
Preceding MCU and rear MCU is micro control unit, and electrically transmission is kept between the output end and front motor input terminal of preceding MVU,
Electrically transmission is kept between the output end of MCU and the input terminal of rear motor afterwards.
Velocity measuring module is used to monitor the revolving speed of front wheels and rear wheels, and gear monitoring modular is used to monitor the transformation of gear.
Based on electric car four-wheel-driven control system, starting accelerates or climbing, and when the small Mr. Yu of speed is worth, driver be may be selected
4 wheel driven mode improves power performance, and when the big Mr. Yu's value of speed, VCU control system automatically cuts off auxiliary power source, to reduce
The energy consumption of vehicle.
Starting accelerates or climbing speed be less than 20km/h or or when 30,40,50,60,70, other vehicle speed values such as 100km/h,
4 wheel driven mode may be selected in driver, improves power performance, when speed is greater than 20km/h or 30,40,50,60,70,100km/h
When Deng his vehicle speed value, VCU control system automatically cuts off auxiliary power source according to obscurity boundary calculating, to reduce the energy consumption of vehicle.
The power of former and later two motors is different, wherein powerful motor is used as active force, can independent drive vehicles travel,
Wherein low-power machine drives other two wheel, uses as auxiliary power as stand-by motor, using VCU to front and back two
A motor driven operating condition and vehicle running state are monitored.
Based on electric car four-wheel-driven control system, computer program can be set, by VCU detect motor driven operating condition and
Vehicle running state starts automatically or closes some motor, to allow driver to reach best traveling experience.
Working principle: front motor can be permanent magnet synchronous motor or AC induction motor or other motors.
One low power driving motor (motor after hereinafter referred to as) is installed on rear axle, for driving two rear-wheel rows
It sails.
Motor can be permanent magnet synchronous motor or AC induction motor or other motors afterwards.
Afterwards the effect of motor be mainly auxiliary travelling, get rid of poverty, promoted vehicle accelerating ability can etc..Power of motor is front motor afterwards
1/5 or so (or other ratios).
Gearshift is installed in vehicle drive room, there is " R " on selector, " N ", " D ", " S " four gears, difference table
Show " reversing gear ", " neutral gear ", " forward gear " and " movement gear ".When selector pushes R grades, bend the throttle, vehicle executes
Vehicle movement, only front motor works at this time.It is neutral gear, vehicle can be forbidden travelling when selector pushes N gear.When selector is dialled
When keeping off to D, bend the throttle vehicle executes traveling of advancing, but only front motor works, and rear motor does not work.When selector is dialled
At that time to S, bend the throttle, vehicle execute traveling of advancing, and front and back motor works at the same time, due to the participation of rear motor,
So that vehicle accelerating ability greatly improves, after vehicle start, when speed is greater than 20km/h(or 30 km/h or 50 km/h etc.) when,
VCU can automatically cut off rear MCU, and only preceding MCU is working.
The advantages of electric vehicle 4 wheel driven control mode described herein is: (1) this 4 wheel driven control mode is time sharing, front and back
Power of motor is different, using pre-large post-small power architecture mode, when normally travel based on the big motor driven of front, and rear electricity
Machine only can just work in S gear；(2) even if gear is kept off in S, rear motor participates in driving work, but when speed is greater than 20km/h
When, rear motor can also be automatically stopped work, greatly improve the dynamic property of vehicle when starting to walk and accelerating in this way；Simultaneously in vehicle
When driving greater than 20km/h, only front motor works, and reduces the power loss of vehicle, and avoid full-time four-wheel drive in this way
When, front and back motor works the power consumption of asynchronous generation；(3) another feature of this 4 wheel driven control mode is: working as front
When main drive motor or motor driver damage, rear motor still can work, and run driving low vehicle speeds with small-power,
To make driver smoothly get rid of poverty；(4) this 4 wheel driven control mode is suitble to travel in cross-country road conditions；(5) this 4 wheel driven control mode master
It solves the problems, such as two: 1, four-wheel drive may be selected when starting accelerates, greatly improve the dynamic property of vehicle；2, high speed row
When sailing, VCU can automatically cut off rear stand-by motor, avoid front and back motor it is asynchronous when generate power consumption, the motor feels hot, vehicle
Shake the problems such as, greatly improve the economy of vehicle；3,4 wheel driven control mode described herein has taken into account four-wheel drive cars
Dynamic property and economy have extensive application value；4,4 wheel driven control mode described herein has function of getting rid of poverty, current electricity
When machine or front motor drive corruption, rear motor still can be at low speed, and vehicle is made to get rid of poverty, and can exercise to maintenace point and carry out
Maintenance.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of four-wheel-driven control system of new-energy automobile, including front-wheel, rear-wheel and VCU control system, it is characterised in that: described
Front-wheel includes drive axle (1), steering wheel (2), front reduction gear differential mechanism (3) and preceding driving motor (4), the front reduction gear differential mechanism
(3) and preceding driving motor (4) is all set in the side of drive axle (1), and the steering wheel (2) is set to drive axle (1)
Lower section, drive axle (1) both ends are sequentially connected with idler wheel, the rear-wheel include rear drive shaft (5), rear driving motor (6) and
Deceleration differential (7) afterwards, the both ends of the rear drive shaft (5) are sequentially connected with idler wheel, it is described after driving motor (6) and after subtract
Fast differential mechanism (7) is arranged at the side of rear drive shaft (5)；
The VCU control system includes VCU control unit, preceding MCU, rear MCU, front motor, rear motor, speed monitoring module and shelves
Position monitoring modular, preceding MCU and rear MCU have been electrically connected on the output end of the VCU control unit, and the VCU control is single
Speed monitoring module and gear monitoring modular has been electrically connected in the input terminal of member.
2. a kind of four-wheel-driven control system of new-energy automobile according to claim 1, it is characterised in that: the preceding MCU and
MCU is micro control unit afterwards, between the output end and front motor input terminal of preceding MVU keep electrically transmission, the output end of rear MCU and
Electrically transmission is kept between the input terminal of motor afterwards.
3. a kind of four-wheel-driven control system of new-energy automobile according to claim 1, it is characterised in that: the velocity measuring
Module is used to monitor the revolving speed of front wheels and rear wheels, and the gear monitoring modular is used to monitor the transformation of gear.
4. a kind of four-wheel-driven control system of new-energy automobile according to claim 1, it is characterised in that: be based on electric car
On four-wheel-driven control system, starting accelerates or climbing, and when the small Mr. Yu of speed is worth, 4 wheel driven mode is may be selected in driver, and it is dynamic to improve vehicle
Power, when the big Mr. Yu's value of speed, VCU control system automatically cuts off auxiliary power source, to reduce the energy consumption of vehicle.
5. a kind of four-wheel-driven control system of new-energy automobile according to claim 1, it is characterised in that: starting accelerates or climbs
Slope speed is less than 20km/h(or or 30,40,50,60,70, other vehicle speed values such as 100km/h) when, 4 wheel driven mould may be selected in driver
Formula improves power performance, when speed is greater than 20km/h(or 30,40,50,60,70, his vehicle speed value such as 100km/h) when, VCU
Control system automatically cuts off auxiliary power source according to obscurity boundary calculating, to reduce the energy consumption of vehicle.
6. a kind of four-wheel-driven control system of new-energy automobile according to claim 1, it is characterised in that: it is described former and later two
The power of motor is different, wherein powerful motor is used as active force, can independent drive vehicles traveling, wherein low-power machine work
For stand-by motor, drive other two wheel, used as auxiliary power, using VCU to former and later two motor driven operating conditions and
Vehicle running state is monitored.
7. a kind of four-wheel-driven control system of new-energy automobile according to claim 1, it is characterised in that: be based on electric car
On four-wheel-driven control system, computer program can be set, motor driven operating condition and vehicle running state are detected by VCU, opened automatically
Some motor is moved or closes, to allow driver to reach best traveling experience.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066242.5A CN109017638A (en) | 2018-09-13 | 2018-09-13 | A kind of four-wheel-driven control system of new-energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066242.5A CN109017638A (en) | 2018-09-13 | 2018-09-13 | A kind of four-wheel-driven control system of new-energy automobile |
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| Publication Number | Publication Date |
|---|---|
| CN109017638A true CN109017638A (en) | 2018-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811066242.5A Pending CN109017638A (en) | 2018-09-13 | 2018-09-13 | A kind of four-wheel-driven control system of new-energy automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879117A (en) * | 2021-11-19 | 2022-01-04 | 广东皓耘科技有限公司 | Four-wheel drive control method, device and system, vehicle and tractor |
| CN114290884A (en) * | 2021-08-25 | 2022-04-08 | 华为数字能源技术有限公司 | Automobile driving system and automobile |
| CN114425953A (en) * | 2022-02-23 | 2022-05-03 | 江苏联成开拓集团有限公司 | New energy automobile auxiliary power control system and control method thereof |
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| CN102381177A (en) * | 2011-08-18 | 2012-03-21 | 奇瑞汽车股份有限公司 | Electric four-drive hybrid system and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114290884A (en) * | 2021-08-25 | 2022-04-08 | 华为数字能源技术有限公司 | Automobile driving system and automobile |
| CN113879117A (en) * | 2021-11-19 | 2022-01-04 | 广东皓耘科技有限公司 | Four-wheel drive control method, device and system, vehicle and tractor |
| CN114425953A (en) * | 2022-02-23 | 2022-05-03 | 江苏联成开拓集团有限公司 | New energy automobile auxiliary power control system and control method thereof |
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Application publication date: 20181218 |