SOLENOID DRIVING DEVICE AND ACTIVE VIBRATION ISOLATING SUPPORT DEVICE EQUIPPED WITH THE SAME
First Claim
1. A solenoid driving device comprising:
- a booster circuit which boosts a source voltage when supplying electric power;
a driving circuit which drives and controls an actuator including a solenoid by supplying the actuator with the electric power which is boosted and supplied by the booster circuit;
a drive frequency determining unit which determines a drive frequency at which the actuator is driven based on drive request information for driving the actuator;
a target voltage determining unit which determines on the basis of the determined drive frequency a target voltage value to which the source voltage is boosted and at which the electric power is supplied to the solenoid;
whereinthe determined target voltage value is input to the booster circuit, and the booster circuit supplies the driving circuit with the electric power required to drive the solenoid at the target voltage value.
1 Assignment
0 Petitions
Accused Products
Abstract
A solenoid driving device with excellent electric power efficiency which drives and controls an actuator including a solenoid and an active vibration isolating support device with excellent electric power efficiency which includes the solenoid driving device are disclosed. The solenoid driving device includes a booster circuit 120 which boosts a battery voltage, and driving circuits 121A, 121B which an actuator with the electric power supplied and boosted by the booster circuit 120. ACM_ECU200A including a micro computer 200b calculates the magnitude of the vibration of the engine, an engine vibration cycle and a phase lag to obtain the drive frequency fDV of the actuator in the vibration state estimating unit 234 and the phase detecting unit 235. A booster circuit controlling unit 237 of the micro computer 200b determines the target voltage V based on the drive frequency fDV. The target voltage V is input to the booster circuit 120, and the booster circuit 120 supplies the required electric power to the driving circuits 121A, 121B at the target voltage V*.
31 Citations
6 Claims
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1. A solenoid driving device comprising:
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a booster circuit which boosts a source voltage when supplying electric power; a driving circuit which drives and controls an actuator including a solenoid by supplying the actuator with the electric power which is boosted and supplied by the booster circuit; a drive frequency determining unit which determines a drive frequency at which the actuator is driven based on drive request information for driving the actuator; a target voltage determining unit which determines on the basis of the determined drive frequency a target voltage value to which the source voltage is boosted and at which the electric power is supplied to the solenoid;
whereinthe determined target voltage value is input to the booster circuit, and the booster circuit supplies the driving circuit with the electric power required to drive the solenoid at the target voltage value. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification