Hydraulic pumps in traditional mech

传统的机械式液压助力转向系统中的液压泵由卡车发动机驱动。为了确保卡车在转向时或低速行驶时的便携性，液压泵的排量取决于当转向或转向时的流量。发动机怠速。卡车启动后，无论是否转弯，系统都将运行。而且，当大的转向速度低时，液压泵需要输出更多的动力以获得更多的动力，因此在某种程度上浪费了发动机的动力资源。<br>当前，有些卡车配备了电动助力转向系统。实际上，它并不是真正的纯电动助力转向系统。它还需要液压系统，该系统仅由电动机提供动力。这是电子液压动力转向系统。电子液压助力转向系统克服了传统液压助力转向系统的缺点。液压泵不再由发动机皮带直接驱动，而是由电动泵驱动。泵的所有工作状态都是ECU根据车辆的行驶速度，转向角和其他信号计算出的最佳状态。总之，在低速大转弯时，电子控制单元带动电子液压泵高速输出大功率，节省了驾驶员在行驶方向上的精力；卡车高速行驶时<br>液压动力转向系统主要由机械零件和液压动力装置组成。机械零件由转向传动副，转向摇臂，纵向杆组件，拉杆组件，转向节臂，转向销，转向节销套，转向节轴承和转向节组成。 ..液压动力单元由液压增压器，储油罐，转向泵和管道组成。根据流体流动的形式，液压助力转向可分为两种：恒定流量和大气压。按分配阀形式可分为滑阀式和旋转阀式两种。以液压恒流方向为例，介绍了液压助力转向系统的工作原理。<br>如图1（a）所示，动力转向系统主要由油泵3，控制阀（滑阀7和阀体9），螺母转向装置（11,12）和动力缸15组成。

Hydraulic pumps in traditional mechanical hydraulic power steering systems are driven by truck engines.. In order to ensure the portability of the truck when the steering is in place or at low speed, the displacement of the hydraulic pump is determined by the flow rate when the engine is idle. After the truck starts, the system will work whether it turns or not. Moreover, when the large steering speed is low, the hydraulic pump needs to output more power to obtain more power, so the power resources of the engine are wasted to some extent.<br>Currently some trucks are equipped with electric power steering.. In fact, it's not really pure electric power steering.. It also requires a hydraulic system, which is powered only by motors. This is the electronic hydraulic power steering system. Electronic hydraulic power steering system overcomes the shortcomings of traditional hydraulic power steering system. Hydraulic pumps are no longer driven directly by the engine belt, but by electric pumps. All working states of the pump are the optimal state calculated by the ECU according to the vehicle's running speed, steering Angle and other signals. In a word, in a large turn at low speed, the electronic control unit drives the electronic hydraulic pump to output high power at high speed, saving the driver's efforts in the driving direction; When the truck is running at high speed, the hydraulic control unit drives the electronic hydraulic pump to run at low speed, which does not affect the need for high-speed turning and does not affect the need for high-speed turning.<br>Hydraulic power steering system mainly consists of mechanical parts and hydraulic power plant.. The mechanical part consists of steering transmission pair, steering rocker arm, longitudinal rod assembly, pull rod assembly, knuckle arm, steering pin, knuckle pin sleeve, knuckle bearing and knuckle.. Hydraulic power unit is composed of hydraulic booster, storage tank, steering pump and pipeline. According to the form of fluid flow, hydraulic power steering can be divided into two types: constant flow and atmospheric pressure. According to the distribution valve form can be divided into two kinds of slide valve type and rotary valve type. Taking hydraulic constant flow direction as an example, the working principle of hydraulic power steering system is introduced.<br>As shown in figure 1(a), the power steering system is mainly composed of oil pump 3, control valve (slide valve 7 and valve body 9), nut steering device (11,12) and power cylinder 15.

传统机械液压动力转向系统中的液压泵由卡车发动机驱动。。为了确保转向到位或低速时卡车的轻便性，液压泵的排量由发动机怠速时的流量决定。卡车启动后，无论是否转动，系统都会工作。而且，当转向大转速较低时，液压泵需要输出更多的动力才能获得更多的动力，从而在一定程度上浪费了发动机的动力资源。<br>目前有些卡车配备了电动转向系统。。事实上，这并不是纯电动转向。。它还需要一个液压系统，只有马达提供动力。这是电子液压动力转向系统。电子液压助力转向系统克服了传统液压助力转向系统的缺点。液压泵不再由发动机皮带直接驱动，而是由电动泵驱动。泵的所有工作状态都是由ECU根据车辆的行驶速度、转向角等信号计算出的最佳状态。综上所述，在低速大转弯时，电子控制单元驱动电子液压泵高速输出大功率，节省了驾驶员在行驶方向上的努力；在卡车高速行驶时，液压控制单元驱动电子液压泵低速行驶，不影响高速车削的需要，也不影响高速车削的需要。<br>液压动力转向系统主要由机械部分和液压动力装置组成。。机械部分由转向传动副、转向摇臂、纵杆总成、拉杆总成、转向节臂、转向节销、转向节销套、转向节轴承和转向节组成。。液压动力装置由液压助力器、储罐、转向泵和管路组成。根据流体的流动形式，液压助力转向可分为恒流式和常压式两种。根据分配阀的形式可分为滑阀式和旋转阀式两种。以液压恒定流向为例，介绍了液压助力转向系统的工作原理。<br>如图1（a）所示，动力转向系统主要由油泵3、控制阀（滑阀7、阀体9）、螺母转向装置（11、12）和动力缸15组成。<br>