Electromagnetic actuator, and electromagnetic clutch and differential using the same
AssigneeTochigi Fuji Sangyo Kabushiki Kaisha
InventorMasaaki Fusegi
Life of this patent
Estimating the term…
Abstract
The electromagnetic actuator includes an electromagnetic coil configured to provide actuation force in accordance with a solenoid current to be supplied, to a clutch and configured to actuate the clutch to control relative rotation between first and second members. The electromagnetic actuator includes a detector configured to detect the clutch actuated to produce a detection signal. The electromagnetic actuator includes a controller configured to respond to the detection signal from the detector to control the solenoid current.
Claims11
An electromagnetic actuator comprising:
- an electromagnetic coil configured to provide actuation force, in accordance with a solenoid current to be supplied, to a clutch and configured to actuate the clutch to control relative rotation between first and second members;
- a detector configured to detect a connection state of the clutch to produce a detection signal;
- and
- a controller configured to respond to the detection signal from the detector to control the solenoid current from a first level to a second level after a delay following the start of the connection state.
A differential comprising:
- first and second members rotatable relative to each other;
- a clutch engageable to connect the first and second members;
- and
- an electromagnetic actuator configured to actuate the clutch, the electromagnetic actuator comprising:
- an electromagnet configured to be excited into a first state to actuate the clutch and a second state to hold the clutch actuated in a connection state;
- a detector configured to detect the connection state of the clutch;
- and
- a controller configured to respond to the detector detecting the connection state of the clutch by changing the electromagnet from the first state to the second state after a delay following the start of the connection state.
An electromagnetic clutch comprising:
- a clutch engageable to connect a first member and a second member rotatable relative to each other;
- and
- an electromagnetic actuator configured to actuate the clutch;
- the electromagnetic actuator comprising:
- an electromagnet configured to be excited into a first state to actuate the clutch and a second state to hold the clutch in a connection state;
- a detector configured to detect the connection state of the clutch;
- and
- a controller configured to respond to the detector detecting the connection state of the clutch by changing the electromagnet from the first state to the second state after a delay following the start of the connection state.
An electromagnetic actuator comprising:
- an electromagnet configured to be excited into a first state to actuate a clutch and a second state to hold the clutch in a connection state for controlling a relative rotation between first member and a second member;
- a detector configured to detect the connection state of the clutch;
- and
- a controller configured to respond to the detector detecting the connection state of the clutch by changing the electromagnet from the first state to the second state after a delay following the start of the connection state.
Dependencies are inferred from the claim text.