A method and system for determining vehicle dynamic performance
A technology for vehicle power and determination methods, which is applied in vehicle testing, machine/structural component testing, instruments, etc., and can solve problems such as ignoring the impact of ambient temperature
Active Publication Date: 2018-10-19
GUANGZHOU AUTOMOBILE GROUP CO LTD
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[0006] In view of this, the present invention provides a method and system for determining vehicle dynamic performance, which can effectively solve the problem in the prior art that the influence of ambient air temperature is ignored and the vehicle dynamic performance must be tested at the target ambient temperature
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[0022] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0023] see figure 1 , is an embodiment of a method for determining vehicle dynamic performance in an embodiment of the present invention, including:
[0024] 101. Obtain the value of the vehicle dynamic performance measured by the test vehicle at two or more than two ambient temperatures;
[0025] In the embodiment of the present invention, the system for determining the dynamic performance of the vehicle may obtain the values of the dynamic performance of the vehicle measured at two ambient temperatures or more than two ambient temperatures.
[0026] Wherein, the dynamic performance of the vehicle may be acceleration time at start, accelerati...
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The present invention provides a method and system of determination of vehicle dynamic performances. The method provided by the invention comprises: acquiring values of vehicle dynamic performances of a tested vehicle obtained by measurement at two environment temperatures or more than two environment temperatures; establishing and storing a linear relation between the vehicle dynamic performances of the tested vehicle and the environment temperatures according to the values of the vehicle dynamic performances of the tested vehicle obtained by measurement at two environment temperatures or more than two environment temperatures; and responding to an input operation if an input operation of an object environment temperature is detected, and determining and displaying the values of the vehicle dynamic performances at the object environment temperature according to the linear relation of the vehicle dynamic performances and the environment temperatures. Through adoption of the linear relation between vehicle dynamic performances of a tested vehicle and environment temperatures, vehicle dynamic performances at an object environment temperature may be obtained with no need for measurement of vehicle dynamic performances of the tested vehicle at the object environment temperature.
Description
technical field [0001] The invention relates to vehicle test technology, in particular to a method and system for determining vehicle dynamic performance. Background technique [0002] Vehicle dynamic performance evaluation indicators generally include start-up acceleration time, overtaking acceleration time, maximum gradient and maximum vehicle speed. The correlation between the above-mentioned indicators is strong, and the start-up acceleration time at full throttle of 0-100km / h is the vehicle with the best dynamic performance. Generally speaking, the shorter the start acceleration time, the better the dynamic performance of the vehicle. [0003] At present, most countries and automobile companies have stipulated corresponding test methods for the measurement of vehicle dynamic performance. Taking my country as an example, GBT 12534 (General Rules for Vehicle Road Test Methods) is used to measure vehicle dynamic performance. [0004] Existing studies have shown that an in...
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IPC IPC(8): G01M17/007
Inventor 张希波刘巨江张安伟罗凯范良明
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD