CN102673365A - Hybrid power electric automobile driving system by utilizing synchronous belt transmission - Google Patents

Hybrid power electric automobile driving system by utilizing synchronous belt transmission Download PDF

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Publication number
CN102673365A
CN102673365A CN2012101781381A CN201210178138A CN102673365A CN 102673365 A CN102673365 A CN 102673365A CN 2012101781381 A CN2012101781381 A CN 2012101781381A CN 201210178138 A CN201210178138 A CN 201210178138A CN 102673365 A CN102673365 A CN 102673365A
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China
Prior art keywords
wheel
drive
power
driving
motor
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Pending
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CN2012101781381A
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Chinese (zh)
Inventor
陈辛波
代群
余卓平
钟再敏
夏威夷
沈雨霏
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Tongji University
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Tongji University
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Priority to CN2012101781381A priority Critical patent/CN102673365A/en
Publication of CN102673365A publication Critical patent/CN102673365A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a hybrid power electric automobile driving system by utilizing synchronous belt transmission. The driving system is composed of a front wheel motor driving system and two groups of rear wheel electrically driving systems controlled independently; and wheel-side output torque is transmitted to semi-shafts and hubs through synchronous belt small belt wheels, synchronous wheels and synchronous belt large belt wheels to drive rear wheels; and a motor and wheel-side motors do not have direct mechanical contact and change automobile driving modes through a total automobile controller. The hybrid power electric automobile driving system by utilizing synchronous belt transmission has the advantages that the distributed arranging mode is more flexible compared with the integrated motor arranging mode, interior space is saved, multiple kinds of driving control modes of all wheel driving, front wheel driving, rear wheel driving and the like can be achieved, the whole automobile performance is better, reduction of unsprung mass of automobiles is facilitated, the cost is low, and the performance is high.

Description

Adopt the mixed power electric car drive system of synchronous strap drive
Technical field
The present invention relates to a kind of mixed power automobile driving system, particularly relate to a kind of distributed arrangement and adopt the mixed power electric car drive system of band transferring power synchronously.
Background technology
Modern oil electric mixed dynamic electronlmobil generally is divided into three kinds of tandem, parallel and series parallel types.They all adopt to concentrate the motor-driven scheme without exception, are delivered to wheel through transmission shaft, main reduction gear again after promptly having the power of a high-performance main drive motor and driving engine to be coupled through dynamic coupling device power.For satisfying the automotive performance requirement, the general motor of this kind scheme adopts power bigger.Power of motor density is not high at present, so power of motor is big, and size, quality must be very big; Certainly will cause harmful effect to vehicle performance like this; And motor arranges in car and dumb, has influence on interior space possibly, and the traveling comfort of automobile is produced harmful effect.
Slowdown type wheel limit power drive system is comparatively later-model at present electronlmobil transmission scheme, and promptly each drive motor is arranged near each drive wheel, through direct drive wheel behind the speed reduction gearing.Owing to can all arrange wheel motor by each drive wheel, so the optional lower-powered motor of wheel motor.And wheel limit power drive system has omitted the devices such as power-transfer clutch, universal-joint, transmission shaft and diff of orthodox car, and it is compared concentrate motor-driven that special advantages is arranged: succinct, the capable of using space of complete vehicle structure is big; Messenger chain is short, the drive system driving efficiency is higher, and each driving wheel torque is independent controlled, and the chassis system dynamics Controlling is more flexible, convenient etc.But take turns the limit power drive system at present owing to the multi-stage gear transmission is adopted in the requirement of width between centers and transmitting ratio; Increased the unsprung weight of vehicle; Cause the undesirable of vehicle performance, and because the requirement of carrier gear precision drive has caused the raising of sealing and lubricated cost.
Band is a kind of new type transmission belt synchronously, grows up combining strap drive, chain gear and gear-driven advantage.Owing to be to utilize band tooth driving surface and belt wheel teeth groove engagement carrying out transmission, therefore be with and belt wheel between in transmission process, do not have slippage and present synchrodrive.Compare with traditional V band that to have a belt body light and approach, intensity is high, and transmitting ratio is accurate, the driving efficiency height, and the transmission power scope is big, the transmission speed advantages of higher.Compare with chain gear have net synchronization capability good, need not to lubricate, in light weight, advantage such as cost low and maintenance is convenient.Thereby its development is very fast, and has replaced other types strap drive or chain-driving in some specific occasions, has been widely used in fields such as light industry and machinery, chemical industry, computing machine and universal machine at present.But only be confined to control on the camshaft actuated of engine valve in the application on the automobile at present.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of mixed power electric car drive system that adopts synchronous strap drive, and distributed gear transmission of taking turns in the power drive system of limit is replaced with synchronous strap drive.
In order to solve above technical matters, the invention provides a kind of mixed power electric car drive system that adopts synchronous strap drive, promptly front-wheel provides power by driving engine, and each trailing wheel all has a cover wheel limit power drive system that power is provided.Concrete transmission scheme is: the trailing wheel power drive system by front-wheel engine drive system and two groups of independent controls is formed; Wherein, The front-wheel drive system turnkey is drawn together driving engine, power-transfer clutch, change-speed box and main reduction gear; The same with preposition forerunner's orthodox car, the power of driving engine drives front-wheel through power-transfer clutch, change-speed box, main reduction gear transmission.
The trailing wheel power drive system comprises that power accumulator, two wheel motors and two groups are with speed reduction gearing synchronously; Power accumulator is the wheel motor power supply through being electrically connected; The housing of wheel motor and suspension simple pendulum arm are fixed, and the rotor of output shaft axle and the small pulley of wheel motor connect firmly, and semiaxis one end connects firmly with big belt wheel; Big small pulley is through band connection synchronously, and the semiaxis other end and drive wheel wheel hub connect firmly; The wheel motor output torque through synchronous band small pulley, synchronously band, be with big belt wheel to be passed to semiaxis and wheel hub synchronously, and drive trailing wheel; No direct mechanical contact between driving engine and the wheel motor, they realize the conversion of automobile drive pattern through entire car controller.
Said suspension simple pendulum arm is suspension single longitudenal arm or suspension monocline arm.
The invention has the beneficial effects as follows:
1) adopt the distributed hybrid power drive scheme of this kind can make complete vehicle quality distribute rationally, all dynamic output of front and back wheel and constitute all-wheel drive, vehicle performance is more good.Than the all-wheel driven vehicle of transmission, mechanism simplifying, driving efficiency is high, and the formation hybrid vehicle greatly improves vehicle economy;
2) the distributed hybrid power drive scheme of this kind is more suitable for the repacking of traditional combustion engine automobile to new-energy automobile.Because the new-energy automobile development difficulty is bigger, therefore be undoubtedly way the most convenient and reality to the repacking of new-energy automobile by traditional internal-combustion engines vehicle.And the distributed drive system of this kind can keep preposition forerunner's conventional engines Power train fully; Only being required to be trailing wheel installs two groups of independent controls additional and by the wheel limit power drive system of synchronous band deceleration transmission, therefore very is fit to the repacking of traditional vehicle to new-energy automobile;
3) adopt wheel limit power drive system than concentrated motor-driven flexible arrangement, messenger chain is short, the drive system driving efficiency is higher, and each driving wheel torque is independent controlled, and the chassis system dynamics Controlling is more flexible, convenient;
4) will take turns limit power drive system speed reduction gearing adopts synchronous strap drive can satisfy the width between centers requirement of wheel limit power drive system better than gear transmission; Designs simplification helps reducing of vehicle unsprung weight, therefore helps the ride comfort and the road-holding property of automobile; And because strap drive efficient is high synchronously; Adaptive capacity is strong, and need not lubricate and seal, so cost is cheaper.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural plan of single back-wheel drive device among the present invention;
Label declaration among the figure
The 1-front-wheel; The 2-driving engine;
The 3-power-transfer clutch; The 4-small pulley;
The big belt wheel of 5-; 6-is with synchronously;
The 7-wheel motor; The 8-power accumulator;
The 9-change-speed box; The 10-main reduction gear;
The 11-rubber bush; 12-suspension simple pendulum arm;
The 13-rim for automobile wheel; The 14-wheel nave;
The 15-hub bearing; The 16-drum brake mechanism;
17-drum brake mechanism back-plate; The 18-axle tube;
The 19-semiaxis; The 20-bearing;
The 21-trailing wheel.
The specific embodiment
See also shown in the accompanying drawing, the present invention is done to describe further.
As depicted in figs. 1 and 2, the invention provides a kind of mixed power electric car drive system that adopts synchronous strap drive, promptly front-wheel provides power by driving engine, and each trailing wheel all has a cover wheel limit power drive system that power is provided.Concrete transmission scheme is: the trailing wheel power drive system by front-wheel engine drive system and two groups of independent controls is formed; Wherein, The front-wheel drive system turnkey is drawn together driving engine 2, power-transfer clutch 3, change-speed box 9 and main reduction gear 10, and the power of driving engine 2 transmits through power-transfer clutch 3, change-speed box 9, main reduction gear 10 and drives front-wheel.
The trailing wheel power drive system comprises that power accumulator 8, two wheel motors 7 and two groups are with speed reduction gearing synchronously; Power accumulator 8 is wheel motor 7 power supplies through being electrically connected; Suspension simple pendulum arm 12 is hinged on the vehicle frame through rubber bush 11, and the housing of wheel motor 7 and suspension simple pendulum arm 12 are fixed, and the rotor of output shaft axle of wheel motor 7 and small pulley 4 connect firmly; Semiaxis 19 1 ends connect firmly with big belt wheel 5; Big small pulley is through be with 6 to connect synchronously, and semiaxis 19 other ends are supported in the axle tube 18 by hub bearing 15, and axle tube 18 is connected with suspension simple pendulum arm 12; Semiaxis and drive wheel wheel hub 14 connect firmly, and wheel hub 14 and drum brake mechanism 16 and wheel rim 13 are connected through bolt.Wheel motor 7 output torques through synchronous band small pulley 4, be with 6 synchronously, be with big belt wheel 5 to be passed to semiaxis 19 and wheel hub 14 synchronously after, be passed to wheel rim 13 again, finally drive trailing wheel 21.No direct mechanical contact between driving engine 2 and the wheel motor 7, they realize the conversion of automobile drive pattern through entire car controller.
Said suspension simple pendulum arm 12 is suspension single longitudenal arm or suspension monocline arm.
Its concrete driven strategy works of said mixed power electric car drive system is: when vehicle start; Slow down to increase through synchronous band speed reduction gearing by wheel motor 7 and turn round rear drive trailing wheel 21; And this moment, driving engine 2 was not worked; Bring into play the electrically operated low speed high torque in slowdown type wheel limit, advantage that accelerating ability is good like this, avoided driving engine higher shortcoming of fuel consumption rate when the underload rate.When the low city operating mode of low speed demand torque, vehicle needs power is lower, and the power of two wheel motors 7 is enough to provide vehicle power, vehicle to be in pure electronic operating mode to go fully; When automobile is at a high speed or during operating mode such as climbing, vehicle needs power is higher, at this moment can open driving engine 2, makes vehicle operation in hybrid mode, and the power demand of vehicle is provided jointly; Charge by electrical network if can insert electrical network during power accumulator 8 feeds, also can use driving engine 2 to be power accumulator 8 chargings, realize that vehicle charges while going or the function of stopping for charging through electrical generator (this motor is the starter motor of driving engine); Wheel motor 7 can also absorb braking energy when automobile brake, be power accumulator 8 chargings, realizes the feedback function of braking energy.Entire car controller is realized the energy management to car load; The power of reasonable distribution driving engine 2 and motor 7; Make driving engine 2, motor 7 can be operated in the zone that oil consumption is minimum and efficient is minimum as far as possible; Thereby greatly improve car load efficient, effectively prolong the automobile continual mileage, improve economy and dynamic property.
The above-mentioned specific embodiment is exemplary; Be in order better to make those skilled in the art can understand this patent; Can not be interpreted as it is the restriction that this patent is comprised scope; For front-wheel adopt that F/F drives, trailing wheel adopts band slowdown type simple pendulum arm suspension fork wheel edge electricity synchronously to drive pattern, or based on this do any be equal to change or modify all belong to protection scope of the present invention.

Claims (2)

1. mixed power electric car drive system that adopts synchronous strap drive, it is characterized in that: this drive system is made up of the trailing wheel power drive systems of front-wheel engine drive system and two groups of independent controls; Wherein, the front-wheel engine drive system comprises F/F, power-transfer clutch, change-speed box and main reduction gear, and the power of driving engine drives front-wheel through power-transfer clutch, change-speed box, main reduction gear transmission; The trailing wheel power drive system comprises that power accumulator, two wheel motors and two groups are with speed reduction gearing synchronously; Power accumulator is the wheel motor power supply through being electrically connected; The housing of wheel motor and suspension simple pendulum arm are fixed, and the rotor of output shaft axle and the small pulley of wheel motor connect firmly, and semiaxis one end connects firmly with big belt wheel; Big small pulley is through band connection synchronously, and the semiaxis other end and drive wheel wheel hub connect firmly; The wheel motor output torque through synchronous band small pulley, synchronously band, be with big belt wheel to be passed to semiaxis and wheel hub synchronously, and drive trailing wheel; No direct mechanical contact between driving engine and the wheel motor, they realize the conversion of automobile drive pattern through entire car controller.
2. according to the mixed power electric car drive system of the synchronous strap drive of claims 1 described employing, it is characterized in that: said suspension simple pendulum arm is suspension single longitudenal arm or suspension monocline arm.
CN2012101781381A 2012-06-01 2012-06-01 Hybrid power electric automobile driving system by utilizing synchronous belt transmission Pending CN102673365A (en)

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WO2015113423A1 (en) * 2014-01-30 2015-08-06 比亚迪股份有限公司 Vehicle and power transmission system thereof
WO2015113422A1 (en) * 2014-01-30 2015-08-06 比亚迪股份有限公司 Vehicle and power transmission system thereof
US9421966B2 (en) 2014-10-20 2016-08-23 Byd Company Limited Hybrid vehicle and shifting control method and power transmission system thereof
US9568080B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568082B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568081B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9566978B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Vehicle and drive control method for the same
US9568065B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Transmission unit, power transmission system and vehicle comprising the same
US9568066B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Power transmission system and vehicle comprising the same
CN107471997A (en) * 2017-04-19 2017-12-15 宝沃汽车(中国)有限公司 A kind of hybrid power transmission mechanism and there is its vehicle
US9874266B2 (en) 2014-09-10 2018-01-23 Byd Company Limited Power transmission system and vehicle comprising the same
US9919699B2 (en) 2014-01-30 2018-03-20 Byd Company Limited Vehicle and method for controlling synchronizer of the same
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US10363806B2 (en) 2014-01-30 2019-07-30 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US10670123B2 (en) 2014-01-30 2020-06-02 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103707749A (en) * 2013-12-11 2014-04-09 同济大学 Integrated single-trailing-arm gear-reducing type electric wheel drive system
CN103707749B (en) * 2013-12-11 2016-11-16 同济大学 A kind of integration single longitudenal arm gear speed-reducing type wheel power drive system
US9919699B2 (en) 2014-01-30 2018-03-20 Byd Company Limited Vehicle and method for controlling synchronizer of the same
WO2015113423A1 (en) * 2014-01-30 2015-08-06 比亚迪股份有限公司 Vehicle and power transmission system thereof
US10363806B2 (en) 2014-01-30 2019-07-30 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568080B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568082B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568081B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
WO2015113422A1 (en) * 2014-01-30 2015-08-06 比亚迪股份有限公司 Vehicle and power transmission system thereof
US9944165B2 (en) 2014-01-30 2018-04-17 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9566978B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Vehicle and drive control method for the same
US10670123B2 (en) 2014-01-30 2020-06-02 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9874266B2 (en) 2014-09-10 2018-01-23 Byd Company Limited Power transmission system and vehicle comprising the same
US9568066B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Power transmission system and vehicle comprising the same
US9568065B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Transmission unit, power transmission system and vehicle comprising the same
US9421966B2 (en) 2014-10-20 2016-08-23 Byd Company Limited Hybrid vehicle and shifting control method and power transmission system thereof
CN107471997A (en) * 2017-04-19 2017-12-15 宝沃汽车(中国)有限公司 A kind of hybrid power transmission mechanism and there is its vehicle

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