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Drive system of hybrid power vehicle

A hybrid vehicle and drive system technology, applied in the direction of power devices, vehicle parts, air pressure power devices, etc., can solve the problem of large motor torque, etc., and achieve the effect of reducing weight, torque and material cost

Inactive Publication Date: 2008-12-10
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of excessive motor torque in the existing hybrid system, the basic concept of the present invention is: two sets of planetary gear mechanisms are used, and the two sun gears with higher speed and smaller torque in the two sets of planetary gear mechanisms are respectively Connect the generator and motor

Method used

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  • Drive system of hybrid power vehicle
  • Drive system of hybrid power vehicle
  • Drive system of hybrid power vehicle

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0021] Embodiments 1 and 2 of the first technical solution, such as figure 1 , figure 2 as shown, Indicates the output interface, a drive system of a hybrid vehicle, including an engine 1 , a front planetary gear mechanism 2 , a rear planetary gear mechanism 3 , a hollow shaft generator 4 , a motor 5 , an inverter 6 and a battery 7 . Wherein, the output end of the engine 1 is connected to the planetary carrier of the front planetary gear mechanism 2 through the hollow shaft of the hollow shaft generator, and the ring gear of the front planetary gear mechanism 2 is connected to the planetary carrier of the rear planetary gear mechanism 3 and rotates together with it. The sun gear of the planetary gear mechanism 2 is connected to the hollow shaft generator 4, and the hollow shaft generator 4 is converted to DC by the inverter 6 and stored in the battery 7, ...

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Abstract

The invention discloses a drive system of a hybrid electric vehicle which includes an engine, a hollow shaft generator, an electromotor, an inverter, a battery and a pre-planetary gear mechanism arranged in a shell; a back-planetary gear mechanism is also arranged in the shell; the output end of the engine penetrates the hollow shaft of the generator and is connected with the planetary frame of the pre-planetary gear mechanism; the gear ring of the pre-planetary gear mechanism is connected with the planet carrier of the back-planetary gear mechanism; the sun wheel of the pre-planetary gear mechanism is connected with the hollow shaft generator; the hollow shaft generator is connected with the battery through the inverter; the battery is connected with the electromotor through the inverter; the electromotor is connected with the sun wheel of the back-planetary gear mechanism; the gear ring of the back-planetary gear mechanism is fixed on the shell; a power output interface used in the vehicle is arranged on the planet carrier of the back-planetary gear mechanism. The drive system of a hybrid electric vehicle reduces the requirements of the system on the torque of the electromotor.

Description

technical field [0001] The present invention relates to a vehicle drive system, in particular to a hybrid vehicle drive system. Background technique [0002] There are three types of hybrid drive systems: series, parallel and hybrid. The series hybrid power system first converts all the power output by the engine into electrical energy by the generator, and then converts the electrical energy into mechanical energy to drive the wheels through the electric motor. Its advantage is that it can realize the optimal control of the engine. Excessive energy loss. The parallel system is based on the traditional car transmission system, plus an electric drive system to provide auxiliary power for the car when accelerating or climbing. connection, the engine cannot always work at the high efficiency point. The existing hybrid system uses a set of planetary gear mechanism, the planet carrier is connected to the engine, the sun gear is connected to the generator, the ring gear is conn...

Claims

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Application Information

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IPC IPC(8): B60K6/365
Inventor 史广奎赵航冯琦孔治国
Owner CHINA AUTOMOTIVE TECH & RES CENT
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