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Testing and evaluation system and method of hybrid electric vehicle braking energy recycling

A braking energy recovery, hybrid vehicle technology, applied in vehicle testing, machine/structural component testing, measuring devices, etc., to achieve the effects of simple test operation, accurate evaluation, and rapid evaluation

Active Publication Date: 2019-11-12
CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1
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Problems solved by technology

[0004] In view of this, the present invention aims at proposing a test system for braking energy recovery of hybrid electric vehicles. Aiming at the deficiency that the current energy recovery evaluation system is mostly based on a single working condition, a quick test method and the establishment of comprehensive braking energy recovery Evaluation equation to realize the test and rapid evaluation of hybrid electric vehicle braking energy recovery

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  • Testing and evaluation system and method of hybrid electric vehicle braking energy recycling
  • Testing and evaluation system and method of hybrid electric vehicle braking energy recycling
  • Testing and evaluation system and method of hybrid electric vehicle braking energy recycling

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Embodiment Construction

[0050] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0051]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood a...

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Abstract

The invention provides a hybrid electric vehicle braking energy recycling testing and evaluation method. A testing system comprises an upper computer, a data collection system, a CAN bus interface, aspeed sensor, a testing vehicle, and a chassis dynamometer. The testing method comprises the following steps: testing vehicle road sliding resistance; setting chassis dynamometer parameters; testing different deceleration working conditions of the vehicle on the chassis dynamometer; testing current and voltage of a vehicle high-voltage accumulator, and computing braking energy recycling rate; andcomputing the deceleration probability distributions under different driving working conditions, and establishing a braking energy recycling evaluation equation. Through the system and method providedby the invention, the testing is performed based on the single deceleration working condition, the testing and quick evaluation on the hybrid electric vehicle braking energy recycling are realized, and the system and method have the features of being simple in operation and strong in repetition.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicle braking energy recovery, in particular to a testing and evaluation system and method for hybrid electric vehicle braking energy recovery. Background technique [0002] During the braking process of the vehicle, part of the kinetic energy of the vehicle is converted into heat energy through the braking system and released to the environment, which cannot be effectively utilized. For hybrid vehicles, the braking energy recovery system can convert part of the energy in the braking process into electrical energy and store it in the battery. When the vehicle is accelerating or driving, this part of the energy is converted into mechanical energy by the motor and reused. The evaluation index of braking energy recovery for hybrid electric vehicles is mainly the braking energy recovery rate, that is, the ratio of the electric energy recovered during the braking process to the energy that ca...

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Application Information

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IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 牛亚卓杨建军聂国乐白巴特尔刘双喜张先锋张晓坤
Owner CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD
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