CN101913322B - Time-division 4-wheel drive (4WD) parallel hybrid driving system - Google Patents

Time-division 4-wheel drive (4WD) parallel hybrid driving system Download PDF

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Publication number
CN101913322B
CN101913322B CN2010102576633A CN201010257663A CN101913322B CN 101913322 B CN101913322 B CN 101913322B CN 2010102576633 A CN2010102576633 A CN 2010102576633A CN 201010257663 A CN201010257663 A CN 201010257663A CN 101913322 B CN101913322 B CN 101913322B
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China
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motor
engine
storage battery
automobile
drive
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CN2010102576633A
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CN101913322A (en
Inventor
徐忠诚
吴旭峰
李传海
由毅
丁勇
李书福
杨健
赵福全
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute 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 time-division 4-wheel drive (4WD) parallel hybrid driving system belonging to the technical field of automobiles. The invention solves the problem that the conventional fuel-electric 4WD hybrid automobile power system has low energy utilization rate. The time-division 4WD parallel hybrid driving system comprises an engine, a storage battery and first and second motors capable of performing conversion between electric energy and mechanical energy; the engine is connected with a first axle; an engine controller is connected to the engine; the engine can drive the first axle to work during work; the second motor is connected with a second axle; a second motor controller is connected to the second motor; the first motor is connected between the engine and the first motor controller; the first motor can charge the storage battery under the driving of the engine when the engine is in a working state; and the second motor can charge the storage battery when in a working state that mechanical energy is converted to electric energy. The invention has the advantages of strong power, high energy utilization rate, energy saving and environment protection.

Description

Time-division 4-wheel drive (4 WD) parallel hybrid driving system
Technical field
The invention belongs to automobile technical field, relate to automobile dynamic system, especially relate to a kind of time-division 4-wheel drive (4 WD) parallel hybrid driving system.
Background technology
Along with the cry of environmental protection raises day by day, the worsening shortages of the non-renewable resources such as oil, numerous automakers also more and more pay close attention to the research and development of energy-saving and emission-reduction vehicle, and all kinds of hybrid vehicles emerge gradually.Under the prior art background, four-drive hybrid electric vehicle can farthest satisfy the needs of energy environment protection, therefore has more market-oriented prospect.The configuration of the hybrid power automobile power system that develops at present has tandem, parallel and series parallel type.
For parallel four-drive hybrid electric system, people have carried out long-term exploration, have proposed various improvement projects.For example, Chinese patent literature discloses a kind of drive system and control method [application number: CN200910040759.1] thereof of four-drive hybrid electric vehicle, this drive system comprises electrokinetic cell, front drive unit, the entire car controller of rear drive unit and control front drive unit and rear drive unit work, key is that described front drive unit is the driving engine and the propons ISG motor and the front reduction gear that are connected by driving device with driving engine that is installed on the front driving axle, described rear drive unit is the rear retarder that is installed in the back axle ISG motor on the rear driving axle and is connected by driving device with back axle ISG motor, described propons ISG motor and back axle ISG motor are electrically connected with electrokinetic cell by inverter respectively, and the peak power of described propons ISG motor and the rating horsepower ratio of driving engine are more than 40%.The somebody has invented a kind of power system of oil-electricity four-drive hybrid electric vehicle and control method [application number: CN200910242538.2] thereof, this system with motor and driving engine as propulsion source independently, drive respectively front driving wheel and the rear drive sprocket of vehicle, adopt the described machine operation of motor controller controls, adopt the described engine operation of engine controller controls, adopt the described engine controller of vehicle control unit controls and described electric machine controller work, described entire car controller is according to device parameter and the operational factor of vehicle, determine the type of drive of vehicle and the switching between the different driving mode, its control mode comprises self check mode, pure motor-driven mode, pure engine drive mode, motor list driven-mode, driving engine list driven-mode, the two driven-modes of motor-driving engine and outage mode.
Such scheme has improved parallel four-drive hybrid electric system to a certain extent, but it is powerful not still to exist power, and energy utilization rate is low, and energy loss is more, and integral structure is comparatively complicated, and working stability is the high-technology problem not.
Summary of the invention
The objective of the invention is for the problems referred to above, a kind of powerful is provided, energy utilization rate is high, energy-conserving and environment-protective, the rational time-division 4-wheel drive (4 WD) parallel hybrid driving system of integral layout.
For achieving the above object, the present invention has adopted following technical proposal: this time-division 4-wheel drive (4 WD) parallel hybrid driving system, be arranged between the first automobile bridge and the second automobile bridge, this drive system comprises driving engine, storage battery, and the first motor and second motor that can carry out electric energy and mechanical energy conversion, it is characterized in that, described driving engine and the first automobile bridge link, the driving engine first line of a couplet be connected to can control engine work engine controller, when engine operation, can drive the first automobile bridge work, described the second motor and the second automobile bridge link, be connected to the second electric machine controller that links with storage battery and can control the second machine operation at the second motor first line of a couplet, when being in, the second motor can drive the second automobile bridge work when electric energy is converted to the mechanical energy mode of operation, described the first motor be connected to driving engine and can control the first machine operation and and the first electric machine controller of linking of storage battery between, the first motor can be to battery charge under the drive of driving engine when driving engine is in running order, can be to battery charge when described the second motor is in mechanical energy and is converted to the electric energy mode of operation.
Driving engine among the present invention and the second motor can drive separately respectively or drive simultaneously automobile, are suitable for various travel conditions, continual mileage and traditional combustion engine are suitable, also can connect extraneous power supply, reduce fuel oil consumption and minimizing discharging are a kind of desirable hybrid power drive schemes greatly.That is to say, can realize that by driving engine and the second motor full wheel drive, front-wheel drive separately and trailing wheel drives separately three kinds of drive forms, satisfy the driving demand of various different operating modes.Simultaneously, can realize that also pure motorized motions is travelled and reclaim braking energy by the first motor and the second motor, thereby greatly improve the fuel economy of car load and reduce discharging.First motor here only has electricity generate function, and the second motor possesses the function of driving and electricity generate function simultaneously.The first electric machine controller can be controlled the first machine operation, and the second electric machine controller can be controlled the second machine operation, and the second electric machine controller can be controlled the second motor forward or reverse.
In above-mentioned time-division 4-wheel drive (4 WD) parallel hybrid driving system, described engine controller, the first electric machine controller and the second electric machine controller all link with entire car controller.Entire car controller is according to different operating modes and condition of road surface, control engine controller, the first electric machine controller and the second electric machine controller work, thus adjust drive pattern.
In above-mentioned time-division 4-wheel drive (4 WD) parallel hybrid driving system, the mouth of described driving engine is connected with automatic transmission with hydraulic torque converter, and described automatic transmission with hydraulic torque converter links by the first deceleration box of tricks and the first automobile bridge.
In above-mentioned time-division 4-wheel drive (4 WD) parallel hybrid driving system, the described automatic transmission with hydraulic torque converter first line of a couplet is connected to engine gear, and the described first motor first line of a couplet is connected to motor gear, and described engine gear is meshed with motor gear.
In above-mentioned time-division 4-wheel drive (4 WD) parallel hybrid driving system, described the second motor links by the second deceleration box of tricks and the second automobile bridge.
In above-mentioned time-division 4-wheel drive (4 WD) parallel hybrid driving system, described storage battery is battery pack.
In above-mentioned time-division 4-wheel drive (4 WD) parallel hybrid driving system, described the first automobile bridge is automobile front axle, and described the second automobile bridge is automobile axle.Certainly, the first automobile bridge is automobile axle, and the second automobile bridge is that automobile front axle also is feasible scheme.
Compared with prior art, the advantage of this time-division 4-wheel drive (4 WD) parallel hybrid driving system is: 1, reasonable in design, powerful is suitable for various travel conditions, and continual mileage and traditional combustion engine are suitable.2, greatly reduce fuel oil consumption and minimizing discharging when guaranteeing dynamic property, improves the fuel economy of automobile, realizes the purpose of reduction over-the-road expense and energy-conserving and environment-protective.
Description of drawings
Fig. 1 is structured flowchart provided by the invention.
Among the figure, the first automobile bridge 1, the second automobile bridge 2, driving engine 3, storage battery 4, the first motor 5, the second motor 6, engine controller 7, the first electric machine controller 91, the second electric machine controller 92, entire car controller 10, automatic transmission with hydraulic torque converter 11, the first deceleration box of tricks 12, engine gear 13, motor gear 14, the second deceleration box of tricks 15.
The specific embodiment
As shown in Figure 1, this time-division 4-wheel drive (4 WD) parallel hybrid driving system is arranged between the first automobile bridge 1 and the second automobile bridge 2.In the present embodiment, the first automobile bridge 1 is automobile front axle, and the second automobile bridge 2 is automobile axle.Certainly, the first automobile bridge is 1 automobile axle, and the second automobile bridge 2 also is feasible scheme for automobile front axle.
This drive system comprises driving engine 3, storage battery 4 and can carry out electric energy and the first motor 5 and second motor 6 of mechanical energy conversion.Wherein, storage battery 4 is battery pack.Driving engine 3 and the first automobile bridge 1 link, driving engine 3 first line of a couplet be connected to can control engine the engine controller 7 of 3 work, when driving engine 3 work, can drive 1 work of the first automobile bridge.The second motor 6 and the second automobile bridge 2 link, be connected to the second electric machine controller 92 that links with storage battery 4 and can control 6 work of the second motor at the second motor 6 first line of a couplet, can drive 2 work of the second automobile bridge when electric energy is converted to the mechanical energy mode of operation when the second motor 6 is in.The first motor 5 be connected to driving engine 3 and can control the work of the first motor 5 and and the first electric machine controller 91 of linking of storage battery 4 between, the first motor 5 can be to storage battery 4 chargings under the drive of driving engine 3 when driving engine 3 is in running order.Can be to storage battery 4 chargings when the second motor 6 is in mechanical energy and is converted to the electric energy mode of operation.
Engine controller 7, the first electric machine controller 91 and the second electric machine controller 92 all link with entire car controller 10.Entire car controller 10 is according to different operating modes and condition of road surface, and control engine controller 7, the first electric machine controller 91 and the second electric machine controller 92 are worked, thereby adjust drive pattern.The first electric machine controller 91 can be controlled 5 work of the first motor, and the second electric machine controller 92 can be controlled 6 work of the second motor, and the second electric machine controller 92 can be controlled the second motor 6 forward or reverse.
In the present embodiment, the mouth of driving engine 3 is connected with automatic transmission with hydraulic torque converter 11, and automatic transmission with hydraulic torque converter 11 links by the first deceleration box of tricks 12 and the first automobile bridge 1.Automatic transmission with hydraulic torque converter 11 first line of a couplet are connected to engine gear 13, the first motors 5 first line of a couplet and are connected to motor gear 14, and engine gear 13 is meshed with motor gear 14.The second motor 6 links by the second deceleration box of tricks 15 and the second automobile bridge 2.
Can realize that by driving engine 3 and the second motor 6 full wheel drive, front-wheel drive separately and trailing wheel drives separately three kinds of drive forms, satisfy the driving demand of various different operating modes.Simultaneously, can realize that also pure motorized motions is travelled and reclaim braking energy by the first motor 5 and the second motor 6, thereby greatly improve the fuel economy of car load and reduce discharging.First motor 5 here only has electricity generate function, and the second motor 6 possesses the function of driving and electricity generate function simultaneously.
The detailed operation process of this time-division 4-wheel drive (4 WD) parallel hybrid driving system is as follows:
1. starting
When the SOC of storage battery 4 value was higher, the second motor 6 drove the second automobile bridge 2 and starts to walk in pure electronic mode; When the SOC of storage battery 4 value was lower than the limit low value of its setting, driving engine 3 started, by driving engine 3 startings and simultaneously to storage battery 4 chargings.
2. climbing
When the SOC of storage battery 4 value was higher, driving engine 3 and the second motor 6 were united driving, realized four wheel drive; When the SOC of storage battery 4 value is lower than the limit low value of its setting, only provide climbing power by driving engine 3.
3. accelerate
When the SOC of storage battery 4 value was higher, driving engine 3 and the second motor 6 unite to drive provided peak power, satisfied and accelerated required driving power; When the SOC value of storage battery 4 is low, only provide driving power by driving engine 3.
4. at the uniform velocity
Higher and speed of operation drives automobiles by the second motor 6 when the pure electronic highest line of setting is sailed in the vehicle speed range when the SOC of storage battery 4 value, and driving engine 3 is not worked; When the SOC of storage battery 4 value is low, drive automobiles by driving engine 3, in the situation that driving engine 3 power have is more than needed to the battery charging, remain that driving engine 3 is in efficient district's work.
5. braking or deceleration
When brake pedal slightly depressed, driving engine 3 cut out, if the SOC of storage battery 4 allows, the first motor 5 and the second motor 6 work in generating state, and the first automobile bridge 1, the second automobile bridge 2 all carry out braking energy and reclaim, accumulators 4 chargings; When brake pedal severe depressed, the first motor 5 and the second motor 6 provided braking torque, and mechanical brake also participates in braking simultaneously.
6. reversing
When the SOC of storage battery 4 value was higher, 6 counter-rotatings of the second motor provided driving power by the second motor 6; When the SOC of storage battery 4 value is low, provide driving power by driving engine 3 via automatic transmission with hydraulic torque converter 11, realizing falls back travels.
Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has more used the terms such as the first automobile bridge 1, the second automobile bridge 2, driving engine 3, storage battery 4, the first motor 5, the second motor 6, engine controller 7, the first electric machine controller 91, the second electric machine controller 92, entire car controller 10, automatic transmission with hydraulic torque converter 11, the first deceleration box of tricks 12, engine gear 13, motor gear 14, the second deceleration box of tricks 15, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction all is contrary with spirit of the present invention.

Claims (4)

1. time-division 4-wheel drive (4 WD) parallel hybrid driving system, be arranged between the first automobile bridge (1) and the second automobile bridge (2), this drive system comprises driving engine (3), storage battery (4), and the first motor (5) and second motor (6) that can carry out electric energy and mechanical energy conversion, it is characterized in that, described driving engine (3) links with the first automobile bridge (1), driving engine (3) first line of a couplet be connected to can control engine (3) engine controller (7) of work, when working, driving engine (3) can drive the first automobile bridge (1) work, described the second motor (6) links with the second automobile bridge (2), be connected to the second electric machine controller (92) that links with storage battery (4) and can control the second motor (6) work at the second motor (6) first line of a couplet, when being in, the second motor (6) can drive the second automobile bridge (2) work when electric energy is converted to the mechanical energy mode of operation, described the first motor (5) be connected to driving engine (3) and can control the first motor (5) work and and the first electric machine controller (91) of linking of storage battery (4) between, when driving engine (3) is in running order the first motor (5) can be under the drive of driving engine (3) to storage battery (4) charging, can charge to storage battery (4) when described the second motor (6) is in mechanical energy and is converted to the electric energy mode of operation; Described engine controller (7), the first electric machine controller (91) and the second electric machine controller (92) all link with entire car controller (10); The mouth of described driving engine (3) is connected with automatic transmission with hydraulic torque converter (11), and described automatic transmission with hydraulic torque converter (11) links by the first deceleration box of tricks (12) and the first automobile bridge (1); Described automatic transmission with hydraulic torque converter (11) first line of a couplet is connected to engine gear (13), and described the first motor (5) first line of a couplet is connected to motor gear (14), and described engine gear (13) is meshed with motor gear (14); The first electric machine controller (91) can be controlled the first motor (5) work, and the second electric machine controller (92) can be controlled the second motor (6) work, and the second electric machine controller (92) can be controlled the second motor (6) forward or reverse.
2. time-division 4-wheel drive (4 WD) parallel hybrid driving system according to claim 1 is characterized in that, described the second motor (6) links by the second deceleration box of tricks (15) and the second automobile bridge (2).
3. time-division 4-wheel drive (4 WD) parallel hybrid driving system according to claim 1 and 2 is characterized in that, described storage battery (4) is battery pack.
4. time-division 4-wheel drive (4 WD) parallel hybrid driving system according to claim 1 and 2 is characterized in that, described the first automobile bridge (1) is automobile front axle, and described the second automobile bridge (2) is automobile axle.
CN2010102576633A 2010-08-19 2010-08-19 Time-division 4-wheel drive (4WD) parallel hybrid driving system Expired - Fee Related CN101913322B (en)

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CN102381177B (en) * 2011-08-18 2014-10-01 奇瑞汽车股份有限公司 Electric four-drive hybrid system and control method thereof
CN102991334B (en) * 2011-09-08 2015-09-09 北汽福田汽车股份有限公司 The drive system of four-drive hybrid electric vehicle and driving method
CN102897029B (en) * 2012-10-24 2015-10-28 同济大学 The pure electric drive automobile power system of a kind of extended-range four-wheel
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CN104417341B (en) * 2013-09-09 2017-08-04 北汽福田汽车股份有限公司 Hybrid power system, hybrid electric vehicle and its control method for automobile
CN105059105B (en) * 2015-09-11 2019-02-26 重庆青山工业有限责任公司 A kind of four-driving-force assembly of hybrid vehicle
CN107554275A (en) * 2016-06-30 2018-01-09 比亚迪股份有限公司 The mobile power station and motor vehicle driven by mixed power of motor vehicle driven by mixed power
CN108162952B (en) * 2016-12-06 2020-08-11 海马汽车有限公司 Novel four-wheel drive hybrid power system and driving method thereof
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CN106740810A (en) * 2017-01-24 2017-05-31 王骏杰 Hybrid power system based on double clutch transmission structures
CN110696604A (en) * 2019-11-27 2020-01-17 洛阳智能农业装备研究院有限公司 Series hybrid power driving system of electric tractor

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