53600-SWC-G04 Steering System Power Steering Rack for Honda CRV
53601-SWC-G02
In the existing market, power steering systems can be roughly
divided into three categories: mechanical hydraulic power steering
systems, electronic hydraulic power steering systems and electric
power steering systems.
Mechanical hydraulic power steering system
The mechanical hydraulic power steering system is generally
composed of hydraulic pump, oil pipe, pressure flow control valve
body, V-type transmission belt, oil storage tank and other
components.
This system works regardless of whether the car is steering or not,
and when the steering speed is low, the hydraulic pump needs to
output more power to obtain a larger help. Therefore, to a certain
extent, resources are wasted. It can be recalled that driving such
a car, especially when turning at low speed, I feel that the
direction is relatively heavy, and the engine is relatively
laborious. And because the pressure of the hydraulic pump is very
large, it is also easier to damage the power system.
In addition, the mechanical hydraulic power steering system is
composed of hydraulic pumps and pipelines and cylinders, in order
to maintain pressure, regardless of whether the steering power is
needed, the system always needs to be in a working state, which is
a reason for the consumption of resources.
In general, economical cars use more mechanical hydraulic power
systems.
Electronic hydraulic power steering system
Main components: oil storage tank, power steering control unit,
electric pump, steering machine, power steering sensor, etc., of
which power steering control unit and electric pump are an integral
structure.
Working principle: The electronic hydraulic steering power system
overcomes the shortcomings of the traditional hydraulic steering
power system. The hydraulic pump used by it is no longer driven
directly by the engine belt, but by an electric pump, and all its
working states are calculated by the electronic control unit
according to the vehicle's speed, steering Angle and other signals.
Simply put, at low speed, the electronic control unit drives the
electronic hydraulic pump to output high power at high speed, so
that the driver can save effort in the direction; When the car is
driving at high speed, the hydraulic control unit drives the
electronic hydraulic pump to operate at a lower speed, which does
not affect the need for high-speed steering while saving part of
the engine power.
Electric Power Steering (EPS)
The full English name is Electronic Power Steering, or EPS, which
uses the power generated by the electric motor to assist the driver
in power steering. The composition of EPS, although different car
structural components are not the same, but generally similar. It
is generally composed of torque (steering) sensors, electronic
control units, motors, retarders, mechanical steering devices and
battery power supplies.
Main working principle: When the car is turning, the torque
(steering) sensor will "feel" the torque of the steering disk and
the direction of the intended rotation, these signals will be sent
to the electronic control unit through the data bus, the electronic
control unit will issue action instructions to the motor controller
according to the transmission torque, the direction of the intended
rotation and other data signals, so that the motor will output the
corresponding size of the rotation torque according to the specific
needs. This creates power steering. If it does not turn, the system
does not work and is in standby(sleep) state waiting for the call.
Due to the working characteristics of electric power steering, you
will feel that driving such a car has a better sense of direction
and is more stable at high speed, which is the saying that the
direction is not floating. And because it doesn't work when it's
not turning, it also saves energy to some extent. In general,
high-end cars use such power steering systems more.
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