EPHS

2023年11月30日发(作者：二手老款奥德赛值得入手吗)

EPHS--电液助力转向系统技术解析 electro hydraulic

power steering system

Hydraulic power steering system (Hydraulic Power

Steering, HP magic began in the car using the assembly,

then as the technology continues to develop, the power

steering system in size, power consumption and prices

have made great progress in the car, HPS rapid

popularization. However, the traditional hydraulic power

steering characteristic of the system is composed of a

steering servo rotary valve and pump fuel supply

decision. When a steering to finalize the design of power

steering system, parameters of valve port and the torsion

bar is fixed, for constant flow system, the assist

characteristic is fixed. In the design of power steering

system, if the guarantee automobile provide enough

power in the parking, it will inevitably lead to at high

speed power is too large, the loss of a sense of the way.

The method to solve this problem is using a compromise

solution, cannot make all conditions to achieve the ideal

condition. With the rapid development of automobile

technology, and the highway vehicle speed upgrade, this

contradiction is more and more prominent; in addition, it

also puts forward the requirements of energy-saving

system for power steering factory.

In twentieth Century 80 time later period, in order to

improve the HPS assist characteristic and other defects,

R & D personnel will be introduced to the technology of

power steering system control electronics, designed

according to the steering wheel input torque and vehicle

speed signal to implement the intelligent power speed

induction type power, namely the electro-hydraulic

power steering assist, make the vehicle steering

performance achieved satisfactory the degree of.

Compared with the traditional by engine driving

steering pump system, electro-hydraulic power steering

with energy saving and environmental protection role in

solving energy factory HPS pressure loss waste problem,

so that the fuel consumption and CO: emissions greatly

reduced. In the European market, the application of this

technology has been more popular, such as Peugeot

Citroen C4, Saab 93, VOLVO S40 and other classical

models are used in the electro-hydraulic power steering

gear factory. )

Electro hydraulic power steering system in the

traditional hydraulic power steering system has great

improvement on the basis of the factory system, but even

the most new products are also unable to eradicate the

inherent hydraulic power steering system in layout,

installation, seal, control, energy consumption, wear and

noise and other aspects of the defect. However, because

of its mature technology, can realize the integration of

the vehicle electronic control system, as the traditional

hydraulic power steering system HPS electric power

steering transition to advanced product system

development, is still quite has the advantage in the

present stage, and will continue to improve and develop.

液压动力转向系统(Hydraulic Power Steering,

HP幻开始在轿车上装配使用，此后随着该技术的不断

发展，动力转向系统在体积、功率消耗和价格等方面

都取得了很大进步，HPS在轿车上迅速得到普及。然

而，传统液压助力转向系统的助力特性是由转向伺服

转阀及油泵供油量决定的。当一个转向助力系统设计

定型后，阀口和扭杆的参数固定，对于常流量系统，

其助力特性是固定的。在设计助力转向系统时，若保

证汽车在泊车时提供足够的助力，就必然导致在高速

时助力过大，失去路感。解决这一问题的方法都是采

用折中调和的方案，不能使所有工况都达到理想状况。

随着汽车技术及高速公路的快速发展、汽车车速的提

升，这一矛盾越来越突出;另外，人们对助力转向系统

也提出厂节能的要求。

20世纪80年代后期，为改善HPS助力特性

和其他缺陷，研发人员将电子控制技术引人到动力转

向系统，设计出根据转向盘输人扭矩和车速等信号实

施智能助力的速度感应型助力转向，即电液助力转向，

使汽车转向性能达到了令人满意的程度。

相对于传统的由发动机驭动转向泵的系统，电

液助力转向还具有节能及环保作用，解决厂HPS压力

流失等能量浪费的问题，使油耗和CO:排放量大幅降

低。在欧洲市场，这一技术的应用已较为普及，如标

致雪铁龙C4,萨博93 , VOLVO S40等经典车型均采用

厂电液助力转向器。)

电液助力转向系统在传统液压动力转向系统

的基础上有厂较大改进，但即使是最新的产品也无法

根除液压助力系统在布置、安装、密封性、操控性、

能量消耗、磨损与噪声等方面的固有缺陷。不过，由

于其技术较为成熟，可以实现整车电控系统一体化，

以此作为传统液压动力转向系统HPS向先进的电动

助力转向系统发展的过渡产品，在现阶段仍相当具有

优势，并且还将继续得到改进和发展。