User experience evaluation method for vehicle power acceleration performance

Abstract

The invention discloses a user experience evaluation method for vehicle power acceleration performance. The method comprises the steps: determining a power acceleration response time index tk and a power acceleration sound following time index tdk of a vehicle under the working condition of a test vehicle speed Vk; calculating a time difference delta t by using a formula shown in the description; judging whether the user experience of the power acceleration performance of the vehicle under the working condition of the test vehicle speed Vk is good or poor according to the delta t and the tdk; changing the test vehicle speed Vk, and repeatedly executing the previous steps until all the m test vehicle speeds are tested; if the user experience of the power acceleration performance of the vehicle under the m test vehicle speed working conditions is good, determining that the user experience of the power acceleration performance of the vehicle is good, and otherwise, the judging that user experience of the power acceleration performance of the vehicle is poor. The method can evaluate whether the user experience of the power acceleration performance of the vehicle is good or bad, and provides reference for improving the user experience of the vehicle.

Description

technical field [0001] The invention belongs to the field of vehicle dynamic testing, and in particular relates to a user experience evaluation method for vehicle dynamic acceleration performance. Background technique [0002] With the development of the automobile industry, the penetration rate of automobiles is getting higher and higher, and consumers are paying more and more attention to the dynamic performance experience of automobiles. The driver depresses the accelerator pedal while the vehicle is running and expects to obtain sufficient acceleration. The experience in this simple scene has attracted more and more attention from consumers. In this process, when the driver has an acceleration demand, he presses the accelerator pedal, the engine controller responds to the driver’s input, and the automatic transmission controller judges whether to downshift. Finally, the engine speed increases, and the power is output through the transmission to provide The sustained acc...

AI Technical Summary

Problems solved by technology

However, the acceleration threshold felt by the user will be affected by different external factors. As mentioned above, the increase of the engine power sound to a certain extent will obviously affect the driver's perception of the car's dynamic response

At present, there is no such test method in the automobile industry standards and the public information of major OEMs

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