Method capable of testing motor efficiency on hybrid power assembly bench

A technology for hybrid power and motor efficiency, applied in the field of motor efficiency testing, can solve problems such as inability to test motor efficiency, and achieve high reference value

Inactive Publication Date: 2018-12-21
HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for testing motor efficiency on a hybrid powertrain bench in order to overcome the current situation that motor efficiency testing cannot be performed on a hybrid powertrain bench

Method used

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  • Method capable of testing motor efficiency on hybrid power assembly bench
  • Method capable of testing motor efficiency on hybrid power assembly bench
  • Method capable of testing motor efficiency on hybrid power assembly bench

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specific Embodiment approach 1

[0024] Specific implementation mode one: combine Figure 1 to Figure 3 This embodiment will be described. The method for testing the motor efficiency on the hybrid powertrain bench described in this embodiment is as follows:

[0025] 1. Install the transmission used in the tested hybrid powertrain on the transmission performance bench, and measure the performance bench input speed, performance bench input torque, performance bench left output speed, performance bench The left output torque, the right output speed of the performance bench, and the right output torque of the performance bench, calculate the transmission efficiency under different input speeds and different output torques of each gear of the transmission.

[0026]

[0027] Wherein, the unit of each rotational speed is rpm, and the unit of each torque is Nm.

[0028] 2. Draw the MAP table of the relationship between the transmission efficiency of each gear of the transmission and the input speed and output to...

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Abstract

The present invention discloses a method capable of testing motor efficiency on a hybrid power assembly bench, pertaining to the technical field of performance testing of a hybrid power assembly. Themethod comprises the following steps: arranging the hybrid power assembly on the hybrid power assembly bench, and measuring the motor input voltage, the motor input current, the power factor, the motor rotation speed, the transmission gear, and the left output torque and the right output torque of the hybrid power assembly bench; acquiring the transmission efficiency according to the transmissiongear and the sum of the output torques of the hybrid power assembly bench and by consulting a MAP table, and calculating motor torque according to the sum of the output torques of the hybrid power assembly bench, the transmission efficiency and the transmission speed ratio; and calculating the motor efficiency according to the motor input voltage, the motor input current, the power factor, the motor rotation speed and the calculated motor torque. The method can realize the test of the motor efficiency on the hybrid power assembly bench, the performance test working condition is consistent withthe actual working condition, and thus the test result has a higher reference value.

Description

technical field [0001] The invention belongs to the performance testing technology of a hybrid power assembly, and in particular relates to a testing method for motor efficiency. technical background [0002] The motor is the most important part of the hybrid powertrain. During the research and development of hybrid power, the efficiency test of the motor must be carried out. At present, most automobile companies choose to test the efficiency of the motor on the motor test bench. The object is a single motor, but the motor on a hybrid product does not work independently. Its operating environment is the operating environment of the powertrain. When the motor is working, it is usually coordinated by the entire hybrid system. Therefore, the motor efficiency test on the motor test bench can reflect the performance of the motor unit under certain specific conditions, and the efficiency of the motor when the entire hybrid powertrain system operates in harmony cannot be tested. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34
CPCG01R31/34
Inventor 杨金民刘晓宇张新亮李长硕刘新慧吴鹏李晓龙李日成张凯张强滕月武庆震陈明阳马道明韩肖陈昕陈勇良赵长春梁浩邱洪凯
Owner HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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