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Hybrid power driving system and vehicle

A drive system and hybrid technology, applied in the field of vehicle engineering, can solve the problems of frequent transient response, complex structure and large mass of automobiles, so as to reduce the transient response of vehicles, flexible and changeable space layout, and improve fuel economy. Effect

Inactive Publication Date: 2017-02-22
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the power coupling device integrates the power synthesis device and transmission device of the engine and the electric motor, and has a complex structure and a large mass.
Moreover, the purely mechanical connection between the engine and the electric motor and the wheels makes the spatial arrangement of the entire drive system have greater limitations. At the same time, the purely mechanical connection also causes a large mechanical impact on the drive system due to the variable driving conditions of the car. The engine is subjected to frequent transient response of the car, which is not conducive to controlling the engine to run in the best working area, thus affecting the fuel economy of the car

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] Please refer to figure 1 , the present embodiment provides a hybrid drive system 100 , which includes an engine 110 , an electric motor 120 and a hydraulic assembly 130 . The hydraulic assembly 130 is connected to the engine 110 and the electric motor 120 respectively.

[0022] The hydraulic assembly 130 includes a hydraulic motor 132 and a hydraulic pump 134 . The hydraulic pump 134 is connected to the engine 110 through a first clutch 136 , and the hydraulic pump 134 is connected to the electric motor 120 through a second clutch 138 . The hydraulic pump 134 is connected to the hydraulic motor 132 through the pipeline 140, and drives the rotor (not shown) of the hydraulic motor 132 to rotate through hydraulic transmission. Hydraulic oil (not shown in the figure) is sucked out from the oil tank 142 by the hydraulic pump 134, then passed into the hydraulic motor 132 through the delivery channel of the pipeline 140, finally flows out by the hydraulic motor 132, and retu...

Embodiment 2

[0034] Please refer to figure 2 , this embodiment provides a hybrid drive system 200 , which is substantially the same as the hybrid drive system 100 in Embodiment 1, the main difference between the two is that the hydraulic assembly 130 of this embodiment further includes a hydraulic accumulator 202 .

[0035] please refer again figure 1 , the hydraulic accumulator 202 is connected to the hydraulic pump 134 through the pipeline 140 . The hydraulic accumulator 202 may be one of various accumulators such as a spring type accumulator, a gas isolation type accumulator (gas cylinder type, piston type, bladder type) and the like. The hydraulic accumulator 202 can absorb the excess high-pressure hydraulic oil output by the hydraulic pump 134 when the rotor of the hydraulic motor 132 decelerates and brakes, and recovers braking energy. Effect of hydraulic shocks and pressure pulsations.

[0036] The difference in working principle between the hybrid drive system 200 and the hybri...

Embodiment 3

[0038] Please refer to image 3 and figure 1 , this embodiment provides a hybrid drive system 300, which is substantially the same as the hybrid drive system 100 in Embodiment 1, the main difference between the two is that the hybrid drive system 300 of this embodiment also includes a power storage component 310, which stores Electrical assembly 310 includes battery 312 . The motor 120 is electrically connected to the battery 312 , and when the current and voltage required by the motor 120 match the current and voltage provided by the battery 312 , the battery 312 can directly supply power to the motor 120 . The storage battery 312 can be replaced to ensure sufficient power to drive the motor 120 to rotate.

[0039] Preferably, please refer to image 3 and figure 1 In order to better match the current and voltage provided by the storage battery 312 with the current and voltage required by the motor 120 , the power storage assembly 310 further includes a first converter 314...

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PUM

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Abstract

The invention provides a hybrid power driving system and a vehicle, and belongs to the field of vehicle engineering. The hybrid power driving system comprises an engine, an electric motor and a hydraulic assembly. The hydraulic assembly comprises a hydraulic motor, a hydraulic pump optionally driven by the engine and / or the electric motor, the hydraulic pump is connected with the hydraulic motor through a pipeline and enables a rotor of the hydraulic motor to rotate through hydraulic transmission. The vehicle comprises the hybrid power driving system, and the rotor of the hydraulic motor is connected with wheels of the vehicle. The pipeline makes connection of the whole hybrid power driving system and spatial arrangement more changeable, and the mass is lower than that of a simple mechanical coupling power system. By using the hybrid power system, the fuel economy of the vehicle is improved.

Description

technical field [0001] The invention relates to the field of vehicle engineering, in particular to a hybrid drive system and a vehicle. Background technique [0002] The engine and electric motor of a hybrid vehicle are generally connected to the drive axle through a power coupling device to drive the wheels to rotate. Usually, the power coupling device integrates the power synthesis device and transmission device of the engine and the electric motor, and has a complex structure and a large mass. Moreover, the purely mechanical connection between the engine and the electric motor and the wheels makes the spatial arrangement of the entire drive system have greater limitations. At the same time, the purely mechanical connection also causes a large mechanical impact on the drive system due to the variable driving conditions of the car. The engine is subjected to frequent transient response of the vehicle, which is not conducive to controlling the engine to run in the best work...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/12B60K6/36B60K6/38
CPCB60K6/12B60K6/36B60K6/38Y02T10/62
Inventor 林鑫焱侯全会汤沛
Owner YANCHENG INST OF TECH
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