基于配备取力器的越野车牵引力控制方法

Traction control methods based on special off-road vehicle with power take-off

主要分析了带取力器的特种越野车牵引力控制方法,提出了在低附着系数路面上依靠调节离合器、轴间差速器和制动器的牵引力控制策略。建立了包括离合器在内的全时四驱特种越野车模型,应用MATLAB建立了软件在环仿真平台。对仿真结果进行分析表明:所提出的带取力器的特种越野车牵引力控制方法能够在不调节发动机油门的情况下使发生过度滑转的车轮的滑转率控制在最佳值范围内,从而使车辆快速通过低附着路面区域。

Traction control methods of special off-road vehicle with the power take-off were analyzed.The traction control strategy on the low attachment coefficient road relying on adjusting the clutch,axle differential and brake was presented.A full-time four-wheel-drive special off-road vehicle model with clutch was established.A software in-the-loop simulation platform with MATLAB was built and the simulation was analyzed.The results show that the traction control methods of special off-road vehicle with the power take-off can control the slip rate of over-spin wheels at the best value range without adjusting engine throttle,therefore the vehicle can pass the low adhesion road region.