Automobile road sliding test wind speed and yaw test method, system and equipment

• Main Authors: LIU KAIHE, LIANG SHENGPING, CHANG HAITAO, LI YANG, ZHANG YONGREN
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2023
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a wind speed and yaw testing method, system and device for an automobile road sliding test. The method comprises the steps that the automobile speed, the temperature, the humidity, the atmospheric pressure and the measuring point pressure in the testing time in the automobile road sliding test are obtained under the preset sampling frequency; according to the measuring point pressure, a target yaw angle is obtained through the measuring point pressure difference and the pressure difference yaw function relation; determining the relative speed according to the temperature, humidity, atmospheric pressure and pitot tube test dynamic pressure; and obtaining the environment wind speed and direction according to the target yaw angle, the relative speed and the vehicle speed. In the prior art, a hot-wire probe is used for obtaining the environment wind speed and direction in an ideal state, but a hot-wire probe head is very easy to damage, the measuring point pressure is obtained through a pr