CN101966810B - Hub-based motor parallel-series driving system for automobile - Google Patents

Hub-based motor parallel-series driving system for automobile Download PDF

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Publication number
CN101966810B
CN101966810B CN2010105160649A CN201010516064A CN101966810B CN 101966810 B CN101966810 B CN 101966810B CN 2010105160649 A CN2010105160649 A CN 2010105160649A CN 201010516064 A CN201010516064 A CN 201010516064A CN 101966810 B CN101966810 B CN 101966810B
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China
Prior art keywords
wheel hub
driving engine
motor
control
hub motor
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CN2010105160649A
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CN101966810A (en
Inventor
南涛
吴旭峰
李传海
由毅
丁勇
李书福
杨健
赵福全
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NANTONG MAICHENG AUTOMOBILE TECHNOLOGY Co.,Ltd.
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles

Abstract

The invention provides a hub-based motor parallel-series driving system for an automobile, which belongs to the technical field of automobile driving systems and solves the problem that the structure of the parallel-series driving system in the prior art is complex and not compact. The system comprises an engine, an ISG motor, a clutch and a storage battery, wherein one end of the ISG motor is connected with a crankshaft of the engine, and the other end of the ISG motor is connected with the clutch; the other end of the clutch is connected with a speed reducer; the output shaft of the speed reducer drives rear wheels to rotate through a transmission mechanism; hub motors are arranged in hubs of the two rear wheels; the two hub motors and the ISG motor are connected in parallel to the storage battery; and the engine, the ISG motor and the two hub motors are controlled by a central control system. The parallel-series driving system is driven by adopting the rear wheels, reduces detection of driving conditions, can realize miniaturization of the engine, has a compact and simple structure, and is convenient for manufacturing and driving.

Description

A kind of be used for automobile based on wheel hub motor series-parallel connection drive system
Technical field
The invention belongs to the automobile driving system technical field, relate to a kind of based on wheel hub motor series-parallel connection drive system.
Background technology
The power system of mixed power electric car generally is divided into tandem, parallel and series parallel type.Driving engine in the series-parallel hybrid electric system and electrical motor can drive automobile respectively or drive automobile simultaneously, and their mode of operation is by computer-controlled.This system is fit to various driving conditions, does not need extraneous charging, and continual mileage and internal-combustion engines vehicle are suitable, are optimal hybrid electrically schemes.But traditional series parallel hybrid power adopts planetary wheel to lose as power division, and characteristics make system have both generating and electrically operated function simultaneously, and by the independent control to electrical generator and electrical motor, realize the distribution of energy, and this structure is comparatively complicated.
For this reason, publication number is the Chinese patent application of CN101186209A disclosed " adopting electric system to realize the hybrid power system of series-parallel connection power division ", and it comprises active force and two power systems of secondary power, sets up separately on vehicle front and the trailing wheel again; Main power system comprises ISG motor, self-acting clutch and driving engine, and ISG is connected by self-acting clutch and driving engine are coaxial, be car load output active force, and the ISG motor is installed on the input shaft of change-speed box; Secondary power system comprises wheel hub motor, obtains energy by cable from battery pack, for car load is exported secondary power.
Above-mentioned hybrid power system has three kinds of type of drive: 1, pure engine drive; 2, pure motorized motions; 3, driving engine+direct motor drive, wherein electrical motor is wheel hub motor or ISG motor in the 3rd kind, also can be with wheel hub motor and ISG motor simultaneously as electrical motor.But because driving engine and ISG motor are f-w-ds, and wheel hub motor is a back-wheel drive, under the drive pattern of driving engine+wheel hub motor, front-wheel and trailing wheel all are power wheels, like this can be very high to the requirement of each control element, and the detecting sensor of driving situation increases the control system meeting more complicated of composition, not so occurring to cause damage to wheel hub motor or driving engine under the different situation of front and back wheel rotating speed.
Summary of the invention
The present invention is directed to existing technology and have the problems referred to above, proposed a kind of be used for automobile based on wheel hub motor series-parallel connection drive system, this series-parallel connection drive system adopts back-wheel drive, reduce the detection of driving situation, can realize the miniaturization of driving engine, compact conformation is simple, is convenient to make and drive.
The present invention realizes by following technical proposal: a kind of be used for automobile based on wheel hub motor series-parallel connection drive system, comprise driving engine, the ISG motor, power-transfer clutch and storage battery, it is characterized in that, ISG motor one end is connected with the bent axle of driving engine, the ISG motor other end is connected with power-transfer clutch, the other end of power-transfer clutch is connected with retarder, the output shaft of retarder drives rear wheel by transmission device and rotates, be equipped with wheel hub motor in two rear wheel wheel hubs, two wheel hub motors and described ISG motor parallel are connected to storage battery, driving engine, ISG motor and two wheel hub motors are controlled by master control system.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, when storage battery SOC value is higher than limit value, the master control system control clutch is in normal released state, and driving engine is not worked, and the control storage battery provides the energy for wheel hub motor independent drive vehicle '.This situation operates in starting operating mode and the little load condition of low speed more.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, when storage battery SOC is lower than limit value, master control system control ISG motor takes driving engine to behind certain tachometer value start the engine, and control clutch closure, rotate as the power driven rear wheel by driving engine, the ISG motor is in idling conditions or generating state, and wheel hub motor is in idling conditions.
Under the situation of driving engine as power, above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, when driving engine had power more than needed, master control system control ISG motor was in generating state, absorbed driving engine power more than needed and generated electricity and charge a battery.Can regulate engine operation like this in the more excellent zone of fuel economy.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, when the propulsive effort demand of car load surpasses the driving engine tolerance range, master control system control ISG machine operation is in motoring condition in motoring condition or wheel hub motor, and perhaps ISG motor, wheel hub motor all are in motoring condition.By ISG motor and wheel hub motor to the driving engine power-assisted, to satisfy the demand of travelling of car load.When the operation of car load full load or hypervelocity, brish acceleration, driving engine, ISG motor and wheel hub motor three are driven jointly.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, car load propulsive effort demand just makes engine operation when low oil consumption zone, the idle running of master control system control ISG motor.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, at car load Parking state, when storage battery SOC was low, the master control system control clutch separates separated driving engine and trailing wheel, engine starting, ISG motor are in generating state and charge a battery.To battery charge, avoid the open air can't electrically-charged situation by driving engine.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, at car deceleration or glancing impact, when storage battery SOC allowed, master control system control wheel hub motor worked in generating state, reclaims braking energy and charges the battery.Come recuperated energy by braking.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, when reversing, the master control system control clutch separates driving engine and being connected of trailing wheel, and the wheel hub motor counter-rotating also is controlled at operation in certain range of speed, finishes reversing by driving trailing wheel.Except only being participated in moveing backward by wheel hub motor, the engine drive pattern is moveed backward routinely.
Above-mentioned be used for automobile based on wheel hub motor series-parallel connection drive system, described power-transfer clutch is an electric control clutch, is connected with master control system.
Compared with prior art, the rear-guard formula power-driven system that the present invention adopts driving engine, ISG motor, electric control clutch and rear-wheel hub motor to form is by the various drive patterns of the car load of control policy realization flexibly series-parallel connection driving demand; The structure composition form is simple, makes and drives than being easier to.Wheel hub motor can work in electronic and two kinds of patterns of generating, and can control in central authorities and realize under the adjusting of system that forward and backward switches, and satisfies the demand of the various different driving patterns of car load; Driving engine is realized miniaturization, driving engine and the integrated design of ISG motor integration, arrange compact, the common driving of driving engine, ISG motor and wheel hub motor has powerful dynamic property, the generating of can better utilization driving a vehicle of the power of driving engine when operation affluence stores, also possess braking potential and reclaim function, help effective utilization of energy, continual mileage is higher than conventional car.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, driving engine 1; Bent axle 2; ISG motor 3; Power-transfer clutch 4; Wheel hub motor 5; Storage battery 6; Retarder 7;
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, the present invention includes driving engine 1, ISG motor 3, power-transfer clutch 4 and storage battery 6, bent axle 2 direct connections of ISG motor 3 one ends and driving engine 1, ISG motor 3 other ends are connected with power-transfer clutch 4, the other end of power-transfer clutch 4 is connected with retarder 7, the output shaft of retarder 7 drives rear wheel by transmission device and rotates, be equipped with wheel hub motor 5 in two rear wheel wheel hubs, two wheel hub motors 5 and described ISG motor 3 are connected in storage battery 6, and driving engine 1, ISG motor 3 and two wheel hub motors 5 are controlled by master control system.Power-transfer clutch 4 is an electric control clutch, is connected with master control system.
Master control system comprises as lower unit:
ISG motor ECU, be used to control ISG motor 3 be in electronic, three states dally or generate electricity;
Engine ECU is used for control and detection of engine 1 output drive strength;
Wheel hub motor ECU is used to control wheel hub motor 5 rotatings, and electronic, three states generate electricity or dally;
Storage battery ECU, what be used to control storage battery 6 discharges and recharges and detects the SOC value;
Master control system is by controlling ISG motor ECU, Engine ECU, wheel hub motor ECU and storage battery ECU and other existing ECU of automobile, the power-driven system that driving engine 1, ISG motor 3, power-transfer clutch 4 and rear-wheel hub motor 5 are formed is by the various drive patterns of the car load of control policy realization flexibly series-parallel connection driving demand.
(1) pure electronic enforcement.
When storage battery 6 SOC values were higher than limit value, master control system control clutch 4 was in normal released state, and driving engine 1 is not worked, and control storage battery 6 provides the energy for wheel hub motor 5 independent drive vehicle '.This situation operates in starting operating mode and the little load condition of low speed more.
(2) pure driving engine 1 is exercised.
When storage battery 6 SOC are lower than limit value, master control system control ISG motor 3 takes driving engine 1 to behind certain tachometer value start the engine 1, and control clutch 4 closures, rotate as the power driven rear wheel by driving engine 1, ISG motor 3 is in idling conditions or generating state, and wheel hub motor 5 is in idling conditions.
Under the situation of driving engine 1 as power, when driving engine 1 had power more than needed, master control system control ISG motor 3 was in generating state, absorbed accumulators 6 chargings of generating electricity of driving engine 1 power more than needed.Can regulate driving engine 1 like this and work in the more excellent zone of fuel economy.
(3) combination drive is exercised.
When the propulsive effort demand of car load surpassed driving engine 1 tolerance range, master control system control ISG motor 3 works in motoring condition or wheel hub motor 5 is in motoring condition, and perhaps ISG motor 3, wheel hub motor 5 all are in motoring condition.By ISG motor 3 and 5 pairs of driving engine 1 power-assisteds of wheel hub motor, to satisfy the demand of travelling of car load.When the operation of car load full load or hypervelocity, brish acceleration, driving engine 1, ISG motor 3 and wheel hub motor 5 threes are driven jointly.When car load propulsive effort demand just makes driving engine 1 work in low oil consumption zone, 3 idle running of master control system control ISG motor.
(4) Parking charging.
Be in the Parking state at car load, when storage battery 6SOC was low, master control system control clutch 4 separates separated driving engine 1 and trailing wheel, and driving engine 1 starts, and ISG motor 3 is in 6 chargings of generating state accumulators.By 1 pair of storage battery of driving engine 6 charging, avoid the open air can't electrically-charged situation.
(5) braking energy reclaims.
At car deceleration or glancing impact, when storage battery 6SOC allowed, master control system control wheel hub motor 5 worked in generating state, reclaims braking energy and charges the battery.
(6) two kinds of reversing modes
When reversing, master control system control clutch 4 separates driving engine 1 and being connected of trailing wheel, and wheel hub motor 5 counter-rotatings also are controlled at operation in certain range of speed, finish reversing by driving trailing wheel.Except only being participated in the reversing by wheel hub motor 5, driving engine 1 drive pattern is moveed backward routinely, i.e. master control system control clutch 4 closures, and wheel hub motor 5 is in idling conditions, drives the trailing wheel reversing by driving engine 1.

Claims (7)

  1. One kind be used for automobile based on wheel hub motor series-parallel connection drive system, comprise driving engine (1), ISG motor (3), power-transfer clutch (4) and storage battery (6), it is characterized in that, ISG motor (3) one ends are connected with the bent axle (2) of driving engine (1), ISG motor (3) other end is connected with power-transfer clutch (4), the other end of power-transfer clutch (4) is connected with retarder (7), the output shaft of retarder (7) drives rear wheel by transmission device and rotates, be equipped with wheel hub motor (5) in two rear wheel wheel hubs, two wheel hub motors (5) and described ISG motor (3) are connected in storage battery (6), driving engine (1), ISG motor (3) and two wheel hub motors (5) are controlled by master control system; Driving engine (1) and ISG motor (3) are integrated; When storage battery (6) SOC value was higher than limit value, master control system control clutch (4) was in normal released state, and driving engine (1) is not worked, and control storage battery (6) provides the energy for wheel hub motor (5) independent drive vehicle '; At storage battery (6) when SOC is lower than limit value, master control system control ISG motor (3) takes driving engine (1) to behind certain tachometer value start the engine (1), and control clutch (4) closure, rotate as the power driven rear wheel by driving engine (1), ISG motor (3) is in idling conditions or generating state, and wheel hub motor (5) is in idling conditions; When reversing, master control system control clutch (4) separates driving engine (1) and being connected of trailing wheel, and wheel hub motor (5) reverses and is controlled at operation in certain range of speed, finishes reversing by driving trailing wheel.
  2. 2. according to claim 1 be used for automobile based on wheel hub motor series-parallel connection drive system, it is characterized in that, when driving engine (1) has power more than needed, master control system control ISG motor (3) is in generating state, absorbs accumulators (6) charging of generating electricity of driving engine (1) power more than needed.
  3. 3. according to claim 2 be used for automobile based on wheel hub motor series-parallel connection drive system, it is characterized in that, when the propulsive effort demand of car load surpasses driving engine (1) tolerance range, master control system control ISG motor (3) works in motoring condition or wheel hub motor (5) is in motoring condition, and perhaps ISG motor (3), wheel hub motor (5) all are in motoring condition.
  4. 4. according to claim 3 be used for automobile based on wheel hub motor series-parallel connection drive system, it is characterized in that, when car load propulsive effort demand just makes driving engine (1) work in low oil consumption zone, master control system control ISG motor (3) idle running.
  5. 5. according to claim 1 be used for automobile based on wheel hub motor series-parallel connection drive system, it is characterized in that, at car load Parking state, when storage battery (6) SOC is low, master control system control clutch (4) separates makes driving engine (1) separate with trailing wheel, driving engine (1) starts, and ISG motor (3) is in generating state accumulators (6) charging.
  6. 6. according to claim 1 be used for automobile based on wheel hub motor series-parallel connection drive system, it is characterized in that, at car deceleration or glancing impact, when storage battery (6) SOC allows, master control system control wheel hub motor (5) works in generating state, reclaims braking energy and charges the battery.
  7. 7. according to claim 1 be used for automobile based on wheel hub motor series-parallel connection drive system, it is characterized in that described power-transfer clutch (4) is an electric control clutch, is connected with master control system.
CN2010105160649A 2010-10-22 2010-10-22 Hub-based motor parallel-series driving system for automobile Active CN101966810B (en)

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CN102510119B (en) * 2011-11-18 2014-03-26 中国南方航空工业(集团)有限公司 Vehicle-mounted power generating system for electric vehicle
CN103318170B (en) * 2013-07-10 2016-08-10 潍柴动力股份有限公司 A kind of hybrid electric urban bus and moment of torsion distribution method thereof and system
KR20150025014A (en) * 2013-08-28 2015-03-10 현대모비스 주식회사 In-wheel system for hybrid electric vehicle
CN106394230B (en) * 2016-09-09 2019-06-04 山东理工大学 A kind of oil is electric to mix multi-mode automobile driving system and control method
CN110774902A (en) * 2018-10-23 2020-02-11 任国庆 Multi-phase electric-driven vehicle

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CN201362166Y (en) * 2009-03-04 2009-12-16 上海汽车集团股份有限公司 Series-parallel hybrid system driven directly by engine

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Publication number Priority date Publication date Assignee Title
CN1546334A (en) * 2003-11-28 2004-11-17 田晓虹 Gas, electricity and petroleum hybrid power arrangement
CN101186209A (en) * 2007-09-04 2008-05-28 深圳先进技术研究院 Mixed power system using electrical system to implement series-parallel power distribution
CN201362166Y (en) * 2009-03-04 2009-12-16 上海汽车集团股份有限公司 Series-parallel hybrid system driven directly by engine

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Effective date of registration: 20201020

Address after: Room 518, A2 / F, jianghaizhihuiyuan, 266 Xinshiji Avenue, Nantong high tech Zone, Nantong City, Jiangsu Province 226000

Patentee after: NANTONG MAICHENG AUTOMOBILE TECHNOLOGY Co.,Ltd.

Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China

Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd.

Effective date of registration: 20201020

Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China

Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd.

Address before: 317000, No. 229, Dongfang Avenue, Taizhou, Zhejiang

Patentee before: ZHEJIANG GEELY AUTOMOBILE RESEARCH INSTITUTE Co.,Ltd.

Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.