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Electric power-assisted steering systems have gained a wide market over many years. The main advantages of these systems over hydraulic-actuated systems is the use of an electric motor to power the steering wheels of the vehicle, which reduces the power demand on the engine and so improves fuel saving.
Power steering systems provide higher torque at lower vehicle speed and lower torque at higher vehicle speed. With its broad product portfolio of power drivers for brushless motor control, coupled with advanced microcontrollers, ST ensures a good choice for any power steering application. A sampling of ST products that are applicable to power-steering control systems can be found in the following block diagram.
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