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Bidirectional tensioning belt transmission device for light hybrid electric automobile

A hybrid vehicle and belt tensioning technology, applied in the direction of power unit, pneumatic power unit, engine starting, etc., can solve the problems of high starting noise, increasing system complexity and difficulty of transformation, gear wear and so on

Inactive Publication Date: 2013-10-16
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Gear transmission technology, because the gear is used as the transmission system, the starting noise is large, the gear wear is serious, and the system needs to add an additional lubrication system, which greatly increases the complexity of the system and the difficulty of transformation, and is not conducive to repair and maintenance.

Method used

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  • Bidirectional tensioning belt transmission device for light hybrid electric automobile
  • Bidirectional tensioning belt transmission device for light hybrid electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: as figure 1 As shown, water pump pulley 1, belt 2, engine crankshaft pulley 3, two-way tensioner 4, BSG motor pulley 5.

[0021] A two-way tensioning belt transmission device for a mild hybrid electric vehicle, comprising a BSG motor pulley 5 of a BSG motor with dual functions of a starter and a generator, an engine crankshaft pulley 3, a water pump pulley 1, a water pump pulley 1 and A tensioning device supporting a two-way tensioning pulley 4, the above-mentioned components are connected around by a belt 2.

[0022] Such as figure 2 As shown, the tensioning device 6 is a cylindrical hydraulic tensioning device, one end of the hydraulic cylinder is fixed on the frame, and the other end is connected to the first connecting part 7 through the first shaft, and there is a chute on the first connecting part 7 10. The first connecting piece 7 is connected to the second connecting piece 11 through the second shaft 9. The second connecting piece 11 has a shaft...

Embodiment 2

[0023] Embodiment 2: The hydraulic cylinder can also be replaced by a coil spring. The tensioning device is a coil spring tensioning device. One end of the coil spring is fixed on the frame, and the other end is connected to the first connecting piece 7 through the first shaft. There is a chute 10 on the first connecting piece 7, and the first connecting piece 7 The second shaft 9 is connected to the second connecting piece 11, the second connecting piece 11 has a shaft embedded in the chute 10, the other end of the second connecting piece 11 is fixedly connected to the two-way tensioning wheel 4, and the two-way tensioning wheel 4 is connected with The second shaft 9 swings at the center, the shaft rod slides in the chute 10, and the first connecting piece 7 is moved to pull or compress the coil spring to apply force to the coil spring.

[0024] In the power transmission structure of the entire powertrain, the engine and the motor adopt a belt transmission method for power tr...

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PUM

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Abstract

The invention discloses a bidirectional tensioning belt transmission device for a light hybrid electric automobile. The crankshaft belt pulley of an engine is connected with a motor belt pulley by a belt; one direction of a water pump belt pulley is connected with the crankshaft belt pulley of the engine by the belt, and the other direction of the water pump pulley is connected with the motor belt pulley; a bidirectional tensioning pulley is supported by a tensioning device; one direction of the tensioning pulley is connected with the crankshaft belt pulley of the engine by the belt, and the other direction of the bidirectional tensioning pulley is connected with the motor belt pulley; the motor belt pulley, the crankshaft belt pulley of the engine, the water pump belt pulley and the bidirectional tensioning pulley are connected by encircling the belt; and the bidirectional tensioning belt pulley is directly connected with the tensioning device. Compared with a transmission device which uses gears, the bidirectional tensioning belt transmission device has a simple structure, does not have complex structures such as a clutch and the like, and is convenient to maintain, and the belts are stably driven and have low noise. The belts have the characteristics of light weight and relatively low production cost, and are easy to disassemble and replace.

Description

technical field [0001] The invention relates to a two-way tension belt transmission device of a mild hybrid electric vehicle, which belongs to the field of electric vehicles. Background technique [0002] At present, major car companies at home and abroad are conducting research on mild hybrid technology. Among them, the belt-driven starter / generator integrated BSG adopts belt-driven technology based on ISG technology, and has its unique working characteristics and advantages. BSG technology uses a belt-driven starter / generator integrated motor (referred to as BSG motor) to replace the original car generator, which makes little change to the existing car powertrain structure and improves the car's fuel economy, emissions and other indicators. [0003] With the increasing price of oil and the intensified impact of vehicle exhaust emissions on the environment, electric vehicles have entered a period of rapid development all over the world. Pure electric vehicles, hybrid elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/36F02B61/06F02N11/00
Inventor 张友焕詹文章尹颖
Owner BEIJING ELECTRIC VEHICLE