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Oil-electric hybrid electric vehicle multi-mode drive system

A hybrid electric vehicle and drive system technology, which is applied to the arrangement of multiple different prime movers, power units, vehicle components, etc.

Active Publication Date: 2014-03-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the drivetrain has relatively few operating modes

Method used

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  • Oil-electric hybrid electric vehicle multi-mode drive system
  • Oil-electric hybrid electric vehicle multi-mode drive system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 2 As shown, a multi-mode drive system for a hybrid electric vehicle includes an engine 13, a first motor 14, a second motor 12, a planetary mechanism, a first clutch 9, a second clutch 17, a brake 18, a motor controller, and an ECU , drive axle 21, axle shaft 20 and wheels 19; the first clutch 9 and the second clutch 17 both adopt hydraulic multi-disc clutches, and the brake 18 adopts hydraulic multi-disc brakes; the planetary mechanism includes sun gear 1, planetary carrier 2 and gear circle 3; the second motor 12 is installed on the second motor base 11, one end is connected with the engine 13, and the other end is connected with the second motor rotor shaft 10; one end of the first clutch 9 is connected with the second motor rotor shaft 10, and the other end The connecting shaft 8 is connected with the first gear 7, and the first gear 7 meshes with the second gear 6 to form a gear pair; the second gear 6 is connected with the intermediate shaft 5, and th...

Embodiment 2

[0044] As shown in Figure 3, a multi-mode drive system for a hybrid electric vehicle includes an engine 12, a first motor 13, a second motor 11, a planetary mechanism, a first clutch 5, a second clutch 16, a brake 17, a motor control device, ECU, drive axle 20, axle shaft 19 and wheels 18; the first clutch 5 and the second clutch 16 both adopt hydraulic friction plate clutches; the brake 17 adopts hydraulic friction plate brakes; the planetary mechanism includes sun gear 1, planet carrier 2 and the ring gear 3; the second motor 11 is installed on the second second motor base 10, one end is connected with the engine 12, and the other end is connected with the second motor rotor shaft 9; one end of the first clutch 5 is connected with the connecting shaft 6, The other end is externally meshed with the ring gear 3 through the third gear 4; the connecting shaft 6 is also connected with the first gear 7, and the first gear 7 meshes with the second gear 8 to form a gear pair; the sec...

Embodiment 3

[0047] The second clutch of this embodiment adopts a diaphragm spring clutch, which is mainly composed of a clutch housing, a diaphragm spring, a pressure plate, a friction plate and a release bearing; the first clutch adopts a hydraulic multi-plate clutch, and the brake adopts a caliper disc type. The difference from Embodiment 1 is that the rotor shaft of the second motor is connected to the transmission mechanism, and the transmission mechanism is connected to the ring gear through internal meshing. The working principle is the same as that of Embodiment 1.

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Abstract

The invention discloses an oil-electric hybrid electric vehicle multi-mode drive system. One end of a second motor of the drive system is connected with an engine, and the other end of the second motor of the drive system is connected with a second motor rotor shaft. One end of a first clutch is connected with the second motor rotor shaft, and the other end of the first clutch is connected with a gear ring through a transmission device. A second clutch and a solar wheel are respectively connected with a first motor through a first motor shaft. The second clutch is connected with the gear ring. A brake is connected with the gear ring. A planet carrier is connected with a drive axle. The drive axle is connected with two wheels respectively through two half shafts. An ECU is connected with a motor controller. The motor controller is connected with the first motor and the second motor respectively. The ECU is further connected with the first clutch, the second clutch and the brake respectively. According to the drive system, a planet mechanism, the clutches and the brake are used in a matching mode, so that a drive mode of pure motor drive and coupling of a motor and an engine is realized, and a multi-power transmission mode is formed.

Description

technical field [0001] The invention relates to a vehicle drive system, in particular to a multi-mode drive system for an oil-electric hybrid electric vehicle, which can realize multiple pure electric drive modes. technical background [0002] Due to the increasing reduction of global energy sources and the aggravation of environmental pollution, electric vehicles have become the focus of attention. Compared with traditional internal combustion engines, electric vehicle traction motors have a wider operating range, and the characteristics of constant torque at low speed and constant power at high speed are more suitable for vehicle operation requirements. In recent years, the power drive system and its working mode for electric vehicles have become a research hotspot. In particular, the mass production of Volt has set off a wave of research on the driving mode of electric vehicles. [0003] The Volt is a plug-in hybrid electric vehicle (PHEV) under the Chevrolet brand of G...

Claims

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Application Information

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IPC IPC(8): B60K6/20B60K6/36B60K6/38
Inventor 罗玉涛
Owner SOUTH CHINA UNIV OF TECH
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