Vehicle power testing method and vehicle chassis dynamometer

A chassis dynamometer and power testing technology, which is applied in the direction of measuring traction/propulsion power, power metering, and measuring devices of vehicles, can solve problems such as inaccurate vehicle power, and achieve the effect of simple operation and easy realization

Active Publication Date: 2012-02-01
BEIQI FOTON MOTOR CO LTD
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  • Claims
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Problems solved by technology

[0004] The invention provides a vehicle power testing method and a vehicle chassis dynamometer, which are used to solve the defects that the vehicle power measured in the prior art is inaccurate and greatly affected by uncertain factors, so as to improve the accuracy of vehicle power measurement and facilitate operation , reducing the influence of uncertainties

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  • Vehicle power testing method and vehicle chassis dynamometer
  • Vehicle power testing method and vehicle chassis dynamometer
  • Vehicle power testing method and vehicle chassis dynamometer

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] figure 1 It is a flow chart of the first embodiment of the vehicle power testing method of the present invention, as figure 1 As shown, the vehicle power test method may include the following steps:

[0031] Step 101, the vehicle chassis dynamometer performs a positive test on the test vehicle to obtain the wheel drive power of the test vehicle;

[0032] When the vehic...

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Abstract

The invention discloses a vehicle power testing method and a vehicle chassis dynamometer. The method comprises the following steps that: a vehicle chassis dynamometer carries out a positive test on a tested vehicle so as to obtain a power of a wheel driving force of the tested vehicle; the vehicle chassis dynamometer carries out a reverse test on the tested vehicle so as to obtain a driving tyre rolling resistance loss power; the vehicle chassis dynamometer carries out a test to obtain a dynamometer internal resistance loss power on the condition that a motor of the vehicle chassis dynamometer is in a no-load positive rotation state; and the vehicle chassis dynamometer calculates a chassis output power of the tested vehicle according to the wheel driving force power, the driving tyre rolling resistance loss power, and the dynamometer internal resistance loss power. According to the invention, a vehicle chassis dynamometer is employed to carry out an indoor test on a power output change of an engine of a tested vehicle; and an obtained chassis output power of the tested vehicle has a high accuracy; besides, the method has simple operation and can be realized easily.

Description

technical field [0001] The invention relates to a vehicle overall power output measurement technology, in particular to a vehicle power test method and a vehicle chassis dynamometer. Background technique [0002] Traditionally, the measurement tests of the vehicle transmission resistance loss power and the vehicle chassis output power are carried out in the state of the road test. Through repeated vehicle dynamic tests in the road test, the test data is accumulated, and deviations are found in the test data. , to get the change law of vehicle power. For example: at intervals of a certain test mileage, repeat the power and economy tests on the test road, and look for changes in the power output of the vehicle engine from the changes in the test data. [0003] The existing vehicle overall power output test method has poor operability, the obtained vehicle chassis power is inaccurate, and is easily affected by uncertain factors such as various weather environments and human op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/24G01L5/13
Inventor 陶臣军张宪张永康吴瑞
Owner BEIQI FOTON MOTOR CO LTD
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