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Electric vehicle compound braking energy recovery test stand

A technology of composite braking and energy recovery, applied in the direction of electrical testing/monitoring, etc., can solve such problems, reduce kinetic energy loss and improve braking effect

Inactive Publication Date: 2015-03-25
FUJIAN FUGONG EV TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, to fully test and verify the control strategy, there must be a test platform that is highly versatile, efficient and reliable, and can accurately reflect the dynamic characteristics of the system. Such a test platform is not provided in the prior art

Method used

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  • Electric vehicle compound braking energy recovery test stand

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Embodiment 1

[0030] Please refer to figure 1 , Embodiment 1 of the present invention is: an electric vehicle composite braking energy recovery test bench, including an electric braking module 10, a friction braking module 20, a wheel simulation module 30, a road simulation module 40, a signal processing module 50 and a control Module 60.

[0031] The electric brake module 10 includes an electric motor 11 and an electric motor controller 12 electrically connected with the electric motor, and the electric motor 11 is a KM motor.

[0032] The friction brake module 20 includes a brake pedal 21, a friction brake 22, a brake disc 23 and a brake wheel cylinder 24, the brake pedal 21 is connected to the friction brake 22, the friction brake 22 is connected to the brake disc 23, and the brake The disk 23 is installed on the brake wheel cylinder 24, and the above-mentioned friction brake 22 is a kind of electrohydraulic brake.

[0033] The wheel simulation module 30 includes a flywheel 31 and a tr...

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Abstract

The invention discloses an electric vehicle compound braking energy recovery test stand. The electric vehicle compound braking energy recovery test stand comprises an electric braking module, a friction braking module, a wheel simulation module, a road simulation module, a signal processing module and a control module. Braking wheel cylinders and a flywheel are coaxially installed on a transmission shaft, one end of the transmission shaft is in transmission connection with an electric machine, the other end of the transmission shaft is connected with a torque and rotation speed sensor and a dynamic dynamometer, a dynamometer controller and an electric machine controller are electrically connected with a processing circuit, wheel cylinder pressure sensors are installed on the braking wheel cylinders, a friction brake energy accumulator pressure sensor is installed on a friction brake, a brake pedal displacement sensor is installed on a brake pedal, and the processing circuit is electrically connected with the control module. The electric vehicle compound braking energy recovery test stand has the advantages that braking energy recovery conditions can be simulated under various control strategies, testers can obtain the control strategy with maximum recovery kinetic energy through debugging conveniently, kinetic energy losses of a real vehicle are reduced in actual running, and the braking effect of the vehicle is improved.

Description

technical field [0001] The invention relates to the field of electric vehicle testing equipment, in particular to a test bench for recovering electric vehicle composite braking energy. Background technique [0002] In the braking process of electric vehicles, in order to ensure good braking stability and good braking energy recovery efficiency under the premise of satisfying the braking strength of the whole vehicle, the control strategy of the electro-hydraulic composite braking system must be carried out. study in depth. The most critical part of this control strategy is the composite braking energy recovery system, which refers to a braking system composed of two sets of equipment that can both provide braking torque. The friction braking system refers to the hydraulic or pneumatic braking system using the brake disc / brake drum, and the electric braking system refers to the friction without the brake disc / brake drum. The braking system that converts the kinetic energy o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/02
Inventor 孙秋林姜涛林丽金王焕华
Owner FUJIAN FUGONG EV TECH
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