Train traction and braking performance is the most important characteristic of the train, which is an important basis for the design of train traction drive system.
列车的牵引与制动性能的计算研究，是列车设计必须进行的最基础的工作；
When driving on slippery surfaces, the four-wheel drive system can automatically transfer up to 100 percent of torque to the front wheels when additional traction and stability is required.
防滑表面上开车时，四轮驱动系统可以自动转移到100%的扭矩和前轮，当更多的牵引和稳定性是必须的。
Fuzzy theory was used to design throttle controller and braking controller of traction control system for four-wheel drive vehicles.
针对四轮驱动汽车，应用模糊理论设计了牵引力控制系统的油门控制器和制动控制器。
Electric drive, consists of traction motor, traction converter and control system, is one of the key technologies of electric vehicle.
电传动是电动汽车的关键技术之一，它由牵引电机、牵引变流器、控制系统三部分组成。
High power GTO inverter is used for railway electric traction. Its PWM control is significantly different from variable frequency drive system in conventional industrial area.
大功率GTO逆变器用于铁路电力牵引，其PW M控制与一般工业领域中的变频调速系统的PWM控制有很大不同。
The experiments show that the presented VVVF speed-variable drive system has good performances and traction properties which is quit applicable to the overhead locomotives.
试验表明，所设计的变频调速系统数字化实现方便，具有良好的调速和牵引性能，在矿机车交流传动领域有着广泛的应用前景。
The ideal power characteristic for traction motor system is put forward from the vehicle driving point with constant torque drive below base speed and constant power drive above base speed.
从整车驱动角度分析提出了电动汽车电机驱动系统的理想动力特性：低于额定转速恒转矩，高于额定转速恒功率。
The experiment technology and equipment of ac drive system are the important method of the study, development and speciality teaching of ac traction engine.
交流传动系统实验技术和设备是交流传动机车研究、开发及专业教学的重要手段。
The experiments show that the presented VVVF speed-variable drive system has good performances and traction properties which is quit applicable tot…
试验表明，所设计的变频调速系统数字化实现方便，具有良好的调速和牵引性能，在矿机车交流传动领域有着广泛的应用前景。
The experiments show that the presented VVVF speed-variable drive system has good performances and traction properties which is quit applicable tot…
试验表明，所设计的变频调速系统数字化实现方便，具有良好的调速和牵引性能，在矿机车交流传动领域有着广泛的应用前景。
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