APPARATUS AND METHOD FOR ESTIMATING PITCH OF VEHICLE RELATED TO ROAD

• Main Authors: KANG JI-SUNG, MOON IN-SEOP, SHI CHIYUAN, ZHAO JICHUN, LI JIANHAO, KIM JONG-HWA, KIM CHAN-SOO
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

An apparatus and method for estimating pitch of a vehicle relative to a road. The apparatus includes: a wheel speed sensor unit that acquires wheel speed data; an inertial measurement unit (IMU) sensor section that acquires IMU data; a preprocessing unit that extracts a stop section and a movement section on the basis of the wheel speed data and the IMU data; and a gradient estimation section that estimates a vehicle pitch in a stop section and a road gradient in a movement section, and estimates a pitch of the vehicle with respect to the road based on the vehicle pitch and the road gradient. 一种用于估算车辆相对于道路的俯仰的装置和方法。所述装置包括：车轮速度传感器部，其获取车轮速度数据；惯性测量单元(IMU)传感器部，其获取IMU数据；预处理部，其基于车轮速度数据和IMU数据来提取停止区段和移动区段；以及坡度估算部，其估算在停止区段的车辆俯仰和在移动区段的道路坡度，并基于所述车辆俯仰和所述道路坡度来估算车辆相对于道路的俯仰。