Vehicular suspension rigidity controlling apparatus and method with roll-over preventive feature
First Claim
1. A vehicular suspension rigidity controlling apparatus, comprising:
- a plurality of suspensions, each suspension being intervened between a sprung mass of a vehicle body and an unsprung mass of a corresponding road wheel;
a suspension rigidity adjusting section that is enabled to adjust a rigidity of each suspension;
a driving state detecting section that detects a driving state of the vehicle;
a vehicular roll-over determining section that predictively determines whether the vehicular driving state is a state in which there is a possibility that the vehicle is rolled over from the detected driving state of the vehicle; and
a suspension controlling section that controllably adjusts the rigidity of at least one of the suspensions via the suspension rigidity adjusting section in a direction to decrease a potential energy of the sprung mass of the vehicle when the vehicular roll-over determining section predictively determines that the vehicular driving state is the state that there is the possibility that the vehicle is rolled over.
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Accused Products
Abstract
In vehicular suspension rigidity controlling apparatus and method, a plurality of suspensions intervened between a sprung mass of a vehicle body and an unsprung mass of a corresponding road wheel, a suspension rigidity adjusting section is installed to be enabled to adjust a rigidity of each suspension, a driving state of the vehicle is detected, a predictive determination is made whether the vehicular driving state is a state in which there is a possibility that the vehicle is rolled over from the detected driving state of the vehicle, and the rigidity of at least one of the suspensions is controllably adjusted in a direction to decrease a potential energy of the sprung mass of the vehicle when predictively determining that the vehicular driving state is the state that there is the possibility that the vehicle is rolled over.
35 Citations
14 Claims
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1. A vehicular suspension rigidity controlling apparatus, comprising:
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a plurality of suspensions, each suspension being intervened between a sprung mass of a vehicle body and an unsprung mass of a corresponding road wheel;
a suspension rigidity adjusting section that is enabled to adjust a rigidity of each suspension;
a driving state detecting section that detects a driving state of the vehicle;
a vehicular roll-over determining section that predictively determines whether the vehicular driving state is a state in which there is a possibility that the vehicle is rolled over from the detected driving state of the vehicle; and
a suspension controlling section that controllably adjusts the rigidity of at least one of the suspensions via the suspension rigidity adjusting section in a direction to decrease a potential energy of the sprung mass of the vehicle when the vehicular roll-over determining section predictively determines that the vehicular driving state is the state that there is the possibility that the vehicle is rolled over. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vehicular suspension rigidity controlling apparatus, comprising:
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a plurality of suspensions, each suspension being intervened between a sprung mass of a vehicle body and an unsprung mass of a corresponding road wheel;
a suspension rigidity adjusting section that is enabled to adjust a rigidity of each suspension;
a driving state detecting section that detects a driving state of the vehicle including at least a vehicular velocity detecting section that detects a vehicular velocity and a steering angular velocity detecting section that detects a steering angular velocity;
a vehicular roll-over determining section that compares each of the detected vehicular velocity and the steering angular velocity with a corresponding one of predetermined threshold values to predictively determine whether the driving state of the vehicle is in the state in which there is a possibility that the vehicle is rolled over; and
a suspension controlling section that, when the driving state of the vehicle is transferred from a first turning state to a second turning state which is reverse to the first turning state and the vehicular roll-over determining section predictively determines that the driving state of the vehicle is in the state in which there is a possibility that the vehicle is rolled over, adjustably controls rigidities of the respective suspensions via the suspension rigidity adjusting section in such a manner that one of the rigidities at at least compression stroke of the respective suspensions have been at the compression stroke during the first turning state being decreased and the rigidities at at least extension stroke of the remaining suspensions which have been at the compression stroke during the first turning state being increased is carried out to decrease a potential energy of the sprung mass of the vehicle.
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14. A vehicular suspension rigidity controlling method, the vehicle comprising:
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a plurality of suspensions, each suspension being intervened between a sprung mass of a vehicle body and an unsprung mass of a corresponding road wheel; and
a suspension rigidity adjusting section that is enabled to adjust a rigidity of each suspension, and the method comprising;
detecting a driving state of the vehicle;
predictively determining whether the vehicular driving state is a state in which there is a possibility that the vehicle is rolled over from the detected driving state of the vehicle; and
controllably adjusting the rigidity of at least one of the suspensions in a direction to decrease a potential energy of the sprung mass of the vehicle, when predictively determining that the vehicular driving state is the state that there is the possibility that the vehicle is rolled over.
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Specification