Apparatus for correcting driving power of vehicle actuator and method thereof
First Claim
1. An apparatus to correct the driving power of an actuator in a vehicle, comprising:
- a comparator that compares a battery voltage of the vehicle with a predetermined reference voltage;
a controller that adjusts and outputs a duty ratio of a Pulse Width Modulation (PWM) signal according to the compared result of said battery voltage and said reference voltage;
a switching element that is switched on and off by the PWM signal and outputs said battery voltage after a transformation; and
an actuator that operates by receiving said transformed battery voltage through said switching element.
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Abstract
An apparatus to correct the driving power of an actuator in a vehicle includes a comparator that compares a battery voltage of the vehicle with a predetermined reference voltage. A controller adjusts and outputs a duty ratio of a Pulse Width Modulation (PWM) signal according to the compared result of the battery voltage and reference voltage. A switching element is switched on and off by the PWM signal and outputs the battery voltage after a transformation. An actuator operates by receiving the transformed battery voltage through the switching element. The actuator operates at a constant speed regardless of the variation of the battery voltage.
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Citations
4 Claims
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1. An apparatus to correct the driving power of an actuator in a vehicle, comprising:
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a comparator that compares a battery voltage of the vehicle with a predetermined reference voltage;
a controller that adjusts and outputs a duty ratio of a Pulse Width Modulation (PWM) signal according to the compared result of said battery voltage and said reference voltage;
a switching element that is switched on and off by the PWM signal and outputs said battery voltage after a transformation; and
an actuator that operates by receiving said transformed battery voltage through said switching element. - View Dependent Claims (2, 3)
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4. A method to correct the driving power of an actuator in a vehicle, comprising:
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comparing a battery voltage of the vehicle with a predetermined reference voltage;
decreasing a duty ratio of a Pulse Width Modulation (PWM) signal if said battery voltage is greater than said reference voltage, and increasing the duty ratio of the PWM signal if said battery voltage is less than said reference voltage; and
transforming and providing said battery voltage to an actuator by a switching operation according to the adjusted PWM signal.
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Specification