CN203739605U - Battery electric vehicle and two-motor driving system thereof - Google Patents

Battery electric vehicle and two-motor driving system thereof Download PDF

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Publication number
CN203739605U
CN203739605U CN201320859013.5U CN201320859013U CN203739605U CN 203739605 U CN203739605 U CN 203739605U CN 201320859013 U CN201320859013 U CN 201320859013U CN 203739605 U CN203739605 U CN 203739605U
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CN
China
Prior art keywords
transmission gear
motor
transmission
drive motor
electric vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320859013.5U
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Chinese (zh)
Inventor
刘海龙
张晓伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Yutong Bus Co Ltd
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Zhengzhou Yutong Bus Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Yutong Bus Co Ltd filed Critical Zhengzhou Yutong Bus Co Ltd
Priority to CN201320859013.5U priority Critical patent/CN203739605U/en
Application granted granted Critical
Publication of CN203739605U publication Critical patent/CN203739605U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a battery electric vehicle and a two-motor driving system of the battery electric vehicle. The two-motor driving system comprises a first driving motor, a second driving motor and an output shaft used for being connected with an axle; a first transmission gear and a second transmission gear are arranged on the output shaft in the axial direction in a spaced mode, the power output end of the first driving motor is connected with a third transmission gear meshed with the first transmission gear, and the power output end of the second driving motor is connected with a fourth transmission gear meshed with the second transmission gear. According to the two-motor driving system of the battery electric vehicle, the two motors are in transmission connection through the gears, on the premise of different power requirements, the motors are made to work in an efficient area by controlling the corresponding motors, and the energy utilizing rate is improved. The driving system is in transmission through the gears, a gearbox is omitted, and therefore the transmission system can be simplified better, and the problems that when the gearbox is adopted, the gear shifting time is long, gear shifting impact exists, and gear shifting cannot be easily performed are also avoided; the transmission efficiency of the transmission system is improved.

Description

A kind of pure electric vehicle and dual-motor drive system thereof
Technical field
The utility model relates to a kind of pure electric vehicle and dual-motor drive system thereof.
Background technology
At present, Ge great automobile vendor of the world, in order to reduce vehicle oil consumption, reaches the object of energy-saving and emission-reduction, all at the various hybrid powers of exploitation and pure electric vehicle.More typical riding vehicle have leaf made in Japan, Toyota general sharp this, general water etc.Daily output leaf is driven by lithium ion battery, in complete completely charged situation, can realize the mileage that cruises more than 160km, and the series-parallel hybrid electric system of general sharp this lift-launch has been gathered the advantage of various hybrid power systems.Driving engine and electrical generator can drive or separately use separately according to travel conditions is common, automatically stop driving engine when stagnation of movement, reduce energy consumption, more effectively control engine and electrical motor, and acceleration response is quick and smooth and easy.Pure electric coach adopts single motor to drive mostly, but because drive motor can not meet the requirement of electronlmobil while about maximum speed and maximum grade climbing performance simultaneously, therefore change speed gear box cannot be substituted, mechanical automatic gearbox is because its driving efficiency is high, and feature simple in structure is extensively adopted by electric bus.
China Patent No. 201110257806 discloses the pure electromotion integrated driving system control method of a kind of double-motor, adopt double-motor that different power is provided, and comprehensively export through power coupler, wherein power coupler is made up of two cover autoshift actuating unit AMT of the gear with four different drive ratios, realizes gearshift by motor and automatic machincal transmission (AMT) are carried out to integrated control.In actual application, find that this structure exists the gearshift time long, gearshift is impacted obviously, sometimes even there will be vehicle not change in the process of moving the problem of gear.
Utility model content
The purpose of this utility model is to provide a kind of pure electric vehicle dual-motor drive system, impacts obvious problem to solve existing dual-motor drive system gearshift time length and gearshift, and a kind of pure electric vehicle that uses this drive system is provided simultaneously.In order to realize above object, the technical scheme that the utility model adopts is: a kind of pure electric vehicle dual-motor drive system, comprises the first drive motor, the second drive motor and output shaft for being connected with vehicle bridge; On described output shaft, be interval with vertically the first transmission gear and the second transmission gear, on the clutch end of described the first drive motor, be connected with the 3rd transmission gear engaging with the first transmission gear, on the clutch end of described the second drive motor, be connected with the 4th transmission gear engaging with the second transmission gear.
This drive system also comprises by transmission device and is connected to the electric annex on the clutch end of the first drive motor or the second drive motor, and on the path of described transmission device, string has first clutch.
Described transmission device be with or the 5th transmission gear that engages of the second transmission gear or the 4th transmission gear.
On the power take-off shaft of described the first drive motor, be serially connected with second clutch.
The technical scheme that the utility model pure electric vehicle adopts is: comprise vehicle bridge and dual-motor drive system thereof, described dual-motor drive system comprises the first drive motor, the second drive motor and the output shaft being connected with vehicle bridge; On described output shaft, be interval with vertically the first transmission gear and the second transmission gear, on the clutch end of described the first drive motor, be connected with the 3rd transmission gear engaging with the first transmission gear, on the clutch end of described the second drive motor, be connected with the 4th transmission gear engaging with the second transmission gear.
This drive system also comprises by transmission device and is connected to the electric annex on the clutch end of the first drive motor or the second drive motor, and on the path of described transmission device, string has first clutch.
Described transmission device be with or the 5th transmission gear that engages of the second transmission gear or the 4th transmission gear.
On the power take-off shaft of described the first drive motor, be serially connected with second clutch.
Pure electric vehicle of the present utility model and dual-motor drive system thereof connect two motors by gear, under the prerequisite of different capacity demand, by the control to corresponding motor, under the prerequisite that meets vehicle power, make machine operation in efficient district, carry high-octane degree of utilization.This drive system adopts gear transmission, has removed change speed gear box, thereby transmission system is more simplified, and the gearshift time while also having avoided adopting change speed gear box is long, and gearshift is impacted and the difficult problem of shifting gears; Improve the driving efficiency of driving system.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 the structure principle chart of the utility model pure electric vehicle dual-motor drive system embodiment, as seen from the figure, this system comprises the first drive motor, the second drive motor and output shaft 6 for being connected with vehicle bridge 7, and vehicle bridge 7 is connected with wheel (not shown); On output shaft, be interval with vertically the first transmission gear 1 and the second transmission gear 2, on the clutch end of the first drive motor, be connected with on the clutch end of the 3rd transmission gear 3, the second drive motor that engage with the first transmission gear 1 and be connected with the 4th transmission gear 4 engaging with the second transmission gear 2.
This drive system also comprises by transmission device and is connected to the electric annex on the clutch end of the second drive motor, and on the path of transmission device, string has first clutch 9; The electric annex of the present embodiment drives and is connected with the second drive motor, certainly, also can drive and be connected with the first drive motor.
The transmission device of the present embodiment is the 5th transmission gear 5 engaging with the 4th transmission gear 4, can certainly be connected with a joggle with the second transmission gear 2; Equally, the transmission device adopting is also not limited to gear, also can adopt belt pulley or other similar transmission devices.
On the power take-off shaft of the first drive motor, be serially connected with second clutch 8.
The power difference of two drive motor, wherein, the power of the first drive motor is greater than the second drive motor.
The utility model also provides a kind of pure electric vehicle, comprises vehicle bridge and dual-motor drive system thereof, and the structure of described dual-motor drive system is described above.
This drive system, under the prerequisite of different capacity demand, by two motors and the collaborative control of power-transfer clutch, can be selected specific mode of operation under different operating modes, and the driving mode of vehicle and power system state are as described below:
(1) at vehicle start, when accelerating and running at high speed, second clutch combination, drives vehicle by the first drive motor 1, and gives electric annex by five transmission gears engagement transferring power, drives electric annex work, now the second drive motor is in readiness for action.
(2) in the time that vehicle at the uniform velocity travels, in the situation that Vehicle Driving Cycle power demand is less, drives vehicle operating by the second drive motor separately, and drive electric annex work, now second clutch separates.
(3), in the time that vehicle power demand is larger, first clutch combination, drives vehicle operating by the first drive motor and the second drive motor co-operation.
(4) under vehicle sliding and braking mode, motor recuperated energy: when lower, first clutch separates, and carries out separately braking energy recovery by the second drive motor at vehicle speed or braking requirement power; In the time that braking requirement power is larger, first clutch combination is carried out braking energy recovery by two motors simultaneously.
Drive system of the present utility model can be applied this system on various vehicles, comprises bus, manned vehicle, commercial vehicle/comm..vehicle etc.; Two motors are connected by the mechanical device such as respective clutch, gear with electric annex, and this system applies on vehicle time, in vehicle operating process, by the optimal control to motor and power-transfer clutch, is reached to the object that reduces power consumption and promote traveling comfort.

Claims (8)

1. a pure electric vehicle dual-motor drive system, is characterized in that: comprise the first drive motor, the second drive motor and output shaft for being connected with vehicle bridge; On described output shaft, be interval with vertically the first transmission gear and the second transmission gear, on the clutch end of described the first drive motor, be connected with the 3rd transmission gear engaging with the first transmission gear, on the clutch end of described the second drive motor, be connected with the 4th transmission gear engaging with the second transmission gear.
2. pure electric vehicle dual-motor drive system according to claim 1, it is characterized in that: this drive system also comprises by transmission device and be connected to the electric annex on the clutch end of the first drive motor or the second drive motor, on the path of described transmission device, string has first clutch.
3. pure electric vehicle dual-motor drive system according to claim 2, is characterized in that: described transmission device be with or the 5th transmission gear that engages of the second transmission gear or the 4th transmission gear.
4. according to the pure electric vehicle dual-motor drive system described in claim 1~3 any one, it is characterized in that: on the power take-off shaft of described the first drive motor, be serially connected with second clutch.
5. a pure electric vehicle, is characterized in that: comprise vehicle bridge and dual-motor drive system thereof, described dual-motor drive system comprises the first drive motor, the second drive motor and the output shaft being connected with vehicle bridge; On described output shaft, be interval with vertically the first transmission gear and the second transmission gear, on the clutch end of described the first drive motor, be connected with the 3rd transmission gear engaging with the first transmission gear, on the clutch end of described the second drive motor, be connected with the 4th transmission gear engaging with the second transmission gear.
6. pure electric vehicle according to claim 5, it is characterized in that: this drive system also comprises by transmission device and be connected to the electric annex on the clutch end of the first drive motor or the second drive motor, on the path of described transmission device, string has first clutch.
7. pure electric vehicle according to claim 6, is characterized in that: described transmission device be with or the 5th transmission gear that engages of the second transmission gear or the 4th transmission gear.
8. according to the pure electric vehicle described in claim 5~7 any one, it is characterized in that: on the power take-off shaft of described the first drive motor, be serially connected with second clutch.
CN201320859013.5U 2013-12-24 2013-12-24 Battery electric vehicle and two-motor driving system thereof Expired - Fee Related CN203739605U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320859013.5U CN203739605U (en) 2013-12-24 2013-12-24 Battery electric vehicle and two-motor driving system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320859013.5U CN203739605U (en) 2013-12-24 2013-12-24 Battery electric vehicle and two-motor driving system thereof

Publications (1)

Publication Number Publication Date
CN203739605U true CN203739605U (en) 2014-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320859013.5U Expired - Fee Related CN203739605U (en) 2013-12-24 2013-12-24 Battery electric vehicle and two-motor driving system thereof

Country Status (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104477050A (en) * 2014-11-28 2015-04-01 山东理工大学 Novel control method of power system of double-motor and double-drive-axle electric vehicle
CN105383274A (en) * 2014-09-04 2016-03-09 罗伯特·博世有限公司 Vehicle driving system and control method thereof
CN106286781A (en) * 2016-09-29 2017-01-04 吕宏 Double drive two-shift automatic variable speed device
CN109733174A (en) * 2018-12-07 2019-05-10 江苏大学 A kind of control device of electric tractor double-motor power confluence
CN110126636A (en) * 2018-02-08 2019-08-16 郑州宇通客车股份有限公司 A kind of bi-motor Brake energy recovery control method and device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105383274A (en) * 2014-09-04 2016-03-09 罗伯特·博世有限公司 Vehicle driving system and control method thereof
CN104477050A (en) * 2014-11-28 2015-04-01 山东理工大学 Novel control method of power system of double-motor and double-drive-axle electric vehicle
CN104477050B (en) * 2014-11-28 2017-05-03 山东理工大学 Control method of power system of double-motor and double-drive-axle electric vehicle
CN106286781A (en) * 2016-09-29 2017-01-04 吕宏 Double drive two-shift automatic variable speed device
CN110126636A (en) * 2018-02-08 2019-08-16 郑州宇通客车股份有限公司 A kind of bi-motor Brake energy recovery control method and device
CN109733174A (en) * 2018-12-07 2019-05-10 江苏大学 A kind of control device of electric tractor double-motor power confluence

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140730

Termination date: 20201224