Duel-clutch stepless speed change series parallel hybrid power system

A technology of hybrid power system and continuously variable transmission, which is applied in the system field of automobile technology field, and can solve the problems of difficult electric drive efficiency, large motor torque, and high system cost

Inactive Publication Date: 2010-08-11
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings are: the motor torque is required to be large, which will increase the cost of the system, otherwise the low-speed dynamic performance of the vehicle is not good; if the drive axle with a large reduction ratio is used to solve this problem, the maximum

Method used

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  • Duel-clutch stepless speed change series parallel hybrid power system
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  • Duel-clutch stepless speed change series parallel hybrid power system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] like figure 1 As shown, the hybrid power system of this embodiment includes an engine 1, a first clutch 2, a first motor 3, a second clutch 4, a second motor 5, a deceleration differential device 6, a drive axle 7, wheels 8, and an energy storage device 9. Motor control device 10 . Wherein: the crankshaft output end of the engine 1 is connected with the input end of the first clutch 2 , the output end of the first clutch 2 is connected with the rotor of the first motor 3 , and the rotor of the first motor 3 is connected with the input end of the second clutch 4 The output end of the second clutch 4 is connected to the rotor of the second motor 5, the rotor of the second motor 5 is connected to the deceleration differential device 6, and the deceleration differential device 6 is connected to the wheel through the drive axle 7. 8-phase connection, the energy storage device 9 is connected to the motor control device 10 through the high-voltage circuit,...

Example Embodiment

[0069] Embodiment 2

[0070] like figure 2 As shown, this embodiment is an optimized solution of the present invention. On the basis of the first embodiment, it also includes an accessory drive transmission device 11 connected to the rotor of the first motor 3. The accessory drive transmission device 11 is used for air conditioning, brake , steering and other devices 12 provide power; it also includes a starter motor 13 , which is connected to the crankshaft output end of the engine 1 through the output end drive plate of the first clutch 2 . The connection of other components, the working process, the system operation mode and the basic control strategy are the same as those in the first embodiment, and will not be repeated here.

[0071] Due to the existence of the accessory drive transmission device 11, this embodiment provides a very flexible hybrid drive mode for the air conditioner, braking, steering and other devices 12: in the case of pure electric drive, idle stop, ...

Example Embodiment

[0074] Embodiment 3

[0075] like image 3 As shown, this embodiment is another optimized solution of the present invention. On the basis of the first embodiment, the deceleration differential device 6 is arranged between the second clutch 4 and the second motor 5, and the input end of the deceleration differential device 6 is arranged. At the same time, it is connected to the output end of the second clutch 4 and the rotor of the second electric machine 5 . The connection of other components, the working process, the system operation mode and the basic control strategy are the same as those in the first embodiment, and will not be repeated here.

[0076] This embodiment shortens the length of the system, and is especially suitable for front-wheel-drive vehicles.

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Abstract

The invention discloses a duel-clutch stepless speed change series parallel hybrid power system in the technical field of automobiles, which comprises an engine, a first clutch, a first motor, a second clutch, a second motor, a speed reduction differential gear, a driving axle, a wheel, an energy storing device, a motor control device, an attachment drive transmission gear and a starting motor, wherein a crank shaft output end of the engine is connected with a rotor of the first motor through the first clutch; the rotor of the first motor is also connected with a rotor of the second motor through the second clutch; the rotor of the second motor is connected with the wheel through the speed reduction differential gear and the driving axle; the energy storing device is electrically connected with the motor control device; the attachment drive transmission gear is connected to the rotor of the first motor to provide hybrid drive for attachments for air-conditioning, braking, steering and the like; and the starting motor is connected with the crank shaft output end of the engine through an input end driving disc of the first clutch. The duel-clutch stepless speed change series parallel hybrid power system has the characteristics of entire car stepless speed change series parallel drive, attachment system hybrid drive, low system cost, low development cost, low maintenance cost and the like.

Description

technical field [0001] The invention relates to a system in the technical field of automobiles, in particular to a dual-clutch continuously variable transmission hybrid system. Background technique [0002] The structural types of automotive hybrid systems include series, parallel and series-parallel hybrid. Among them, the series hybrid power system cannot reduce energy consumption to a lower level due to the need for multiple energy conversions; the parallel hybrid power system, due to the limited potential for optimizing the engine operating point, also limits its ability to further reduce energy consumption; The hybrid hybrid system integrates the advantages of the series hybrid system and the parallel hybrid system and overcomes their respective shortcomings. It is suitable for all road conditions and has great performance advantages. However, the existing hybrid hybrid systems, such as the most representative THS (Toyota Hybrid System) hybrid system of Toyota Motor Co...

Claims

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Application Information

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IPC IPC(8): B60K6/44B60K6/28B60K6/38B60K17/16
CPCY02T10/623Y02T10/6243Y02T10/62
Inventor 杨林陈自强羌嘉曦秦俊
Owner SHANGHAI JIAO TONG UNIV
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