proving road

In order to estimate the terrain trafficability of off-road vehicle, an estimating system was constructed based on VPG ( virtual proving ground) technology.

为了评价越野车辆的地形通过性，建立了基于虚拟试验场技术的评价系统。

Road roughness is both important parameter of Present Serviceability Index, abbreviation is PSI and important reference drawing running criterion of proving ground.

同时，不平度是道路维修诊断技术（Present Serviceability Index，缩写为PSI）的重要参数，车辆营运道路的路面不平度也是试验场道路设计和试验规范制订的重要依据。

The simulation results show that the designed assistance characteristic alleviates the contradiction between the steering agility and the road feel, and the actual current of the motor follows precisely the target current, proving the validity of the control strategy.

仿真结果表明：所设计的助力特性较好地协调了转向轻便性和路感之间的矛盾，同时，电动机实际电流较好地跟踪了目标电流，从而验证了控制策略的有效性。

Comprehensively summarized proving ground based on function, testing history, structure and main facilities. Do a comprehensive study on the basic structure design and typical road test facility design of Virtual proving ground. 3.

对汽车试验场功能、发展历史、结构特点、主要设施等进行分析，全面研究虚拟试验场的基本结构设计和典型道路试验设施设计，并进行系统设计研究。