Vehicle motion control system
First Claim
1. A vehicle motion control system to be installed on a vehicle having a plurality of wheels that include a single front wheel, a right wheel and a left wheel, the single front wheel being disposed in a front portion of the vehicle, the right and left wheels being disposed in respective right and left portions of the vehicle and located on a rear side of the single front wheel, said control system being configured to control motion of the vehicle, said control system comprising:
- a rollover-probability judging portion configured to judge whether or not a vehicle-body acceleration of a body of the vehicle falls in a high rollover-probability region that is defined as a region in which a probability of rollover of the vehicle is high; and
a rollover-prevention control executing portion configured, when it is judged by said rollover-probability judging portion that the vehicle-body acceleration falls in the high rollover-probability region, to execute a rollover prevention control for controlling the motion of the vehicle so as to reduce the probability of rollover of the vehicle,wherein said rollover-probability judging portion is configured to obtain a direction and a magnitude of the vehicle-body acceleration by composing a longitudinal acceleration that is a component of the vehicle-body acceleration in a longitudinal direction of the vehicle and a lateral acceleration that is a component of the vehicle-body acceleration in a width direction of the vehicle,and wherein said rollover-probability judging portion is configured to judge whether or not the vehicle-body acceleration falls in the high rollover-probability region that is defined by a threshold whose amount varies depending on the direction of the vehicle-body acceleration, the threshold being represented by a straight line connecting the front and left wheels and a straight line connecting the front and right wheels.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle motion control system for a vehicle having a single front wheel, a right wheel and a left wheel. The control system includes (a) a rollover-probability judging portion configured to judge whether or not a vehicle-body acceleration falls in a high rollover-probability region; and (b) a rollover-prevention control executing portion configured, when the acceleration falls in the high rollover-probability region, to execute a rollover prevention control for controlling motion of the vehicle so as to reduce the probability of rollover of the vehicle. The rollover-probability judging portion is configured to obtain a direction and a magnitude of the acceleration by composing a component of the acceleration in a longitudinal direction of the vehicle and a component of the vehicle-body acceleration in a width direction of the vehicle. The high rollover-probability region is defined by a threshold whose amount varies depending on the direction of the vehicle-body acceleration.
15 Citations
18 Claims
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1. A vehicle motion control system to be installed on a vehicle having a plurality of wheels that include a single front wheel, a right wheel and a left wheel, the single front wheel being disposed in a front portion of the vehicle, the right and left wheels being disposed in respective right and left portions of the vehicle and located on a rear side of the single front wheel, said control system being configured to control motion of the vehicle, said control system comprising:
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a rollover-probability judging portion configured to judge whether or not a vehicle-body acceleration of a body of the vehicle falls in a high rollover-probability region that is defined as a region in which a probability of rollover of the vehicle is high; and a rollover-prevention control executing portion configured, when it is judged by said rollover-probability judging portion that the vehicle-body acceleration falls in the high rollover-probability region, to execute a rollover prevention control for controlling the motion of the vehicle so as to reduce the probability of rollover of the vehicle, wherein said rollover-probability judging portion is configured to obtain a direction and a magnitude of the vehicle-body acceleration by composing a longitudinal acceleration that is a component of the vehicle-body acceleration in a longitudinal direction of the vehicle and a lateral acceleration that is a component of the vehicle-body acceleration in a width direction of the vehicle, and wherein said rollover-probability judging portion is configured to judge whether or not the vehicle-body acceleration falls in the high rollover-probability region that is defined by a threshold whose amount varies depending on the direction of the vehicle-body acceleration, the threshold being represented by a straight line connecting the front and left wheels and a straight line connecting the front and right wheels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification