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
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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 which includes the solenoid driving device are disclosed. The solenoid driving device includes a booster circuit which boosts a battery voltage, and driving circuits which an actuator with the electric power supplied and boosted by the booster circuit. ACM_ECU200A including a micro computer calculates the magnitude of the vibration of the engine, an engine vibration cycle and a phase lag to obtain the drive frequency of the actuator in the vibration state estimating unit and the phase detecting unit. A booster circuit controlling unit of the micro computer determines the target voltage based on the drive frequency. The target voltage is input to the booster circuit, and the booster circuit supplies the required electric power to the driving circuits at the target voltage.
14 Citations
9 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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7. 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; and the target voltage value varies according to the determined drive frequency. - View Dependent Claims (8)
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9. 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 in such a manner that the target voltage value becomes low at least in a part of a range of the drive frequency used where the drive frequency is low, wherein the target voltage is associated with the drive frequency;
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.
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Specification