Hybrid power automobile dynamic force assembly durable test stand and test method

A hybrid vehicle, powertrain technology, used in vehicle testing, engine testing, machine/structural component testing, etc.

Active Publication Date: 2008-09-10
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing powertrain durability bench

Method used

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  • Hybrid power automobile dynamic force assembly durable test stand and test method
  • Hybrid power automobile dynamic force assembly durable test stand and test method
  • Hybrid power automobile dynamic force assembly durable test stand and test method

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Embodiment Construction

[0029] In the following, referring to the accompanying drawings, through the description of the embodiments, the specific implementation of the present invention, such as the mutual position and connection relationship between the various control systems involved, the function and working principle of each system, and the test method, etc., will be further detailed. Descriptions are provided to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0030] like figure 1 As shown, the hybrid vehicle powertrain durability test bench includes engine 4, ISG motor 3, battery 9, dynamometer 1, four mechanical units, and EMS (engine management system) engine management system, BMS (battery management srstem ) battery management system, MCU (motor control unit) motor control system, HCU (hybrid control unit) hybrid power control system, BCM (body control module) body controlle...

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Abstract

The invention discloses a hybrid electric vehicle power assembly durability testing frame and a testing method. A dynamometer is connected with an engine and a tooth ring through an ISG motor which is electrically connected with an inverter; a rotation speed sensor which is arranged at the external side of the tooth ring is connected with an instrument controller; a frame control system respectively emits test control signals to a hybrid electric control system, an engine management system and a dynamometer; the hybrid electric control system receives external signals and initiates the requirements of starting or stopping and torque to the engine management system and the motor control system according to a self-control strategy. The frame control system (PUMA) controls the operation of the dynamometer by a pre-arranged speed curve and a torque curve, thus leading the engine to run under the working conditions defined in advance. The distribution of motor torque and engine torque and the auxiliary driving torque of the motor are controlled by the hybrid electric control system according to the rotation speed of the engine and the torque requirement.

Description

technical field [0001] The invention relates to an automobile power assembly test bench, in particular to a hybrid electric automobile power assembly endurance test bench and a testing method. Background technique [0002] Since the 1990s, major automobile companies have begun to develop hybrid vehicles. Since Japan's Toyota first launched a hybrid car in 1997, major car companies including Honda, General Motors, Ford, Daimler-Chrysler and French Citroen have launched or developed product cars or concept prototypes. [0003] A hybrid car is not just a concept design, but a real product car. In order to be mass-produced, it is necessary to test and verify each system and obtain product approval. Bench test protocols are built for this purpose. [0004] At present, in China, there is basically no platform capable of effectively evaluating the durability of the powertrain of a hybrid electric vehicle. In particular, there is no effective bench capable of simulating complex r...

Claims

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Application Information

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IPC IPC(8): G01M17/007G01M15/00G01L3/24
Inventor 刘军华
Owner CHERY AUTOMOBILE CO LTD
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