Damper control apparatus
First Claim
1. A damper control apparatus for damping vibration of an unsprung member by controlling a damping force of a damper in a vehicle, the damper being interposed between a sprung member and the unsprung member, the damper control apparatus comprising:
- a vibration level detecting unit configured to detect a vibration level, the vibration level serving as a magnitude of vibration of the unsprung member;
a stroke speed detecting unit configured to detect a stroke speed of the damper;
a command value calculating unit configured to so determine a control command value that an incline of a characteristic line between the control command value and the stroke speed of the damper increases as the vibration of the unsprung member increases, the control command value being a command value for controlling the damping force of the damper; and
a driving circuit configured to output current to control the damping force in accordance with the control command value determined by the command value calculating unit.
2 Assignments
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Accused Products
Abstract
A damper control apparatus damps vibration of an unsprung member by controlling a damping force of a damper in a vehicle, the damper being interposed between a sprung member and the unsprung member. The damper control apparatus includes a vibration level detecting unit that detects a vibration level serving as a magnitude of the vibration of the unsprung member, and a stroke speed detecting unit that detects a stroke speed of the damper. The damper control apparatus further includes a command value calculating unit that determines a control command value, the control command value is a command value for controlling the damping force of the damper on the basis of the vibration level of the unsprung member and the stroke speed of the damper.
9 Citations
13 Claims
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1. A damper control apparatus for damping vibration of an unsprung member by controlling a damping force of a damper in a vehicle, the damper being interposed between a sprung member and the unsprung member, the damper control apparatus comprising:
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a vibration level detecting unit configured to detect a vibration level, the vibration level serving as a magnitude of vibration of the unsprung member; a stroke speed detecting unit configured to detect a stroke speed of the damper; a command value calculating unit configured to so determine a control command value that an incline of a characteristic line between the control command value and the stroke speed of the damper increases as the vibration of the unsprung member increases, the control command value being a command value for controlling the damping force of the damper; and a driving circuit configured to output current to control the damping force in accordance with the control command value determined by the command value calculating unit. - View Dependent Claims (2, 3, 4)
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5. A damper control apparatus for damping vibration of an unsprung member by controlling a damping force of a damper in a vehicle, the damper being interposed between a sprung member and the unsprung member, the damper control apparatus comprising:
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a vibration level sensor configured to detect a vibration level, the vibration level serving as a magnitude of vibration of the unsprung member; a stroke speed sensor configured to detect a stroke speed of the damper; a central processing unit (CPU) configured to so determine a control command value that an incline of a characteristic line between the control command value and the stroke speed of the damper increases as the vibration of the unsprung member increases, the control command value being a command value for controlling the damping force of the damper; and a driving circuit configured to output current to control the damping force in accordance with the control command value determined by the CPU. - View Dependent Claims (6, 7, 8)
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9. A damper control apparatus for damping vibration of an unsprung member by controlling a damping force of a damper in a vehicle, the damper being interposed between a sprung member and the unsprung member, the damper control apparatus comprising:
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a vibration level sensor configured to detect a vibration level, the vibration level serving as a magnitude of vibration of the unsprung member; a stroke speed sensor configured to detect a stroke speed of the damper; a central processing unit (CPU) configured to determine a control command value on the basis of the vibration level of the unsprung member and the stroke speed of the damper, the control command value being a command value for controlling the damping force of the damper; and a driving circuit configured to output current to control the damping force in accordance with the control command value determined by the CPU. - View Dependent Claims (10, 11, 12, 13)
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Specification