Suspension control system
First Claim
1. A suspension control system for controlling suspensions provided for wheels of a vehicle, said wheels being a left front wheel, a right front wheel, a left rear wheel and a right rear wheel, said suspension control system comprising:
- driving condition detecting means for detecting a driving condition of said vehicle;
determination means, coupled to said driving condition detecting means, for determining whether or not said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, said groups being a first group comprising said left front wheel and said right front wheel and a second group comprising said left rear wheel and said right rear wheel; and
control means, coupled to said suspensions and said determination means, for separately controlling said suspensions of said left front wheel, said right front wheel, said left rear wheel and said right rear wheel when said determination means determines that said driving condition detected by said driving condition detecting means does not coincide with said predetermined driving condition and for controlling said suspensions of each of said first and second groups, when said determination means determines that said driving condition coincides with said predetermined driving condition, so that said suspension related to said right front wheel is set to a condition identical to said suspension related to said left front wheel and said suspension related to said right rear wheel is set to a condition identical to said suspension related to said left rear wheel.
1 Assignment
0 Petitions
Accused Products
Abstract
A suspension control system controls suspensions provided for wheels of a vehicle includes a driving condition detecting part for detecting a driving condition of the vehicle, and a determination part for determining whether or not the driving condition detected by the driving condition detecting part coincides with a predetermined driving condition. The suspensions are grouped into a plurality of groups. Also the system includes a control part for separately controlling the suspensions on the basis of the driving condition when the determination part determines that the driving condition does not coincide with the predetermined driving condition and for controlling the suspensions for each of the groups so that the suspensions in an identical group are set to an identical condition when the determination part determines that the driving condition coincides with the predetermined driving condition.
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Citations
25 Claims
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1. A suspension control system for controlling suspensions provided for wheels of a vehicle, said wheels being a left front wheel, a right front wheel, a left rear wheel and a right rear wheel, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether or not said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, said groups being a first group comprising said left front wheel and said right front wheel and a second group comprising said left rear wheel and said right rear wheel; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions of said left front wheel, said right front wheel, said left rear wheel and said right rear wheel when said determination means determines that said driving condition detected by said driving condition detecting means does not coincide with said predetermined driving condition and for controlling said suspensions of each of said first and second groups, when said determination means determines that said driving condition coincides with said predetermined driving condition, so that said suspension related to said right front wheel is set to a condition identical to said suspension related to said left front wheel and said suspension related to said right rear wheel is set to a condition identical to said suspension related to said left rear wheel.
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2. A suspension control system for controlling suspensions provided for wheels of a vehicle, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle, said driving condition detecting means comprising vibration detecting means for detecting a vibration of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said vibration detected by said vibration detecting means of said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition.
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3. A suspension control system for controlling suspensions provided for wheels of a vehicle, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle, said driving condition detecting means comprising vehicle speed detecting means for detecting a vehicle speed of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, said determination means comprising vehicle speed determination means for determining whether said vehicle speed exceeds a reference vehicle speed which corresponds to said predetermined driving condition; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition.
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4. A suspension control system for controlling suspensions provided for wheels of a vehicle, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle, said driving condition detecting means comprises vehicle speed detecting means for detecting a vehicle speed of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, said predetermined driving condition being said vehicle speed, said vehicle speed including three speed ranges, said three speed ranges being a predetermined low-speed range, a predetermined high-speed range and a predetermined-intermediate speed range, said determination means comprising vehicle speed determination means for determining to which one of said three speed ranges said vehicle speed detected by said vehicle speed detecting means belongs; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition, said control separately controlling said suspensions when said vehicle speed is in said predetermined high-speed range and controlling said suspensions for each of said groups when said vehicle speed in said predetermined low-speed range, said control means further comprising means, operating when said vehicle speed is in said predetermined intermediate-speed range, for controlling said suspensions in a predetermined one of said groups so that said suspensions in said predetermined one of the groups are set to the identical condition and for separately controlling said suspension in said groups other than said predetermined one of said groups. - View Dependent Claims (5)
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6. A suspension control system for controlling suspensions provided for wheels of a vehicle, each of said suspensions including a shock absorber providing a damping force which is switchable between a high level and a low level, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition, for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition such that said shock absorbers of said suspensions in the identical group are set to said low level when at least one of said shock absorbers in the identical group is in the low level. - View Dependent Claims (7)
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8. A suspension control system for controlling suspensions provided for wheels of a vehicle, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, said determination means comprising acceleration determination means for determining whether said vehicle is in a predetermined accelerating state; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition such that said acceleration determination means of said determination means determines that said vehicle is in said predetermined accelerating state. - View Dependent Claims (9)
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10. A suspension control system for controlling suspensions provided for wheels of a vehicle, each of said suspensions including a shock absorber providing a damping force, said damping force being switchable between a high level and a low level, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle, said driving condition detecting means comprising damping force change rate detecting means for detecting a rate of change in the damping force of the shock absorber included in each of said suspensions; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said rate of change in the damping force of the shock absorber included in each of said suspensions, said rate of change being indicative of said driving condition, said control means controlling said suspensions when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition. - View Dependent Claims (11)
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12. A suspension control system for controlling suspensions provided for wheels of a vehicle, each of said suspensions comprising a spring having a spring constant switchable between predetermined levels, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups; control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition, said control means comprising change means for changing the spring constant of said spring in accordance with said driving condition.
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13. A suspension control system for controlling suspensions provided for wheels of a vehicle, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle, said driving condition detecting means comprising sensor means for detecting a pressure of a brake oil in a braking unit provided in said vehicle; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, said determination means comprising brake determination means for determining whether said vehicle is in a predetermined braking state, said determination means further comprising brake oil detection means for determining whether or not said pressure of the brake oil exceeds a reference pressure level, said vehicle being in said predetermined braking state when said brake oil detection means of said determination means determines that said pressure of the brake oil exceeds said reference pressure level; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition such that said brake determination means of said determination means determines that said vehicle is in said predetermined braking state.
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14. A suspension control system for controlling suspensions provided for wheels of a vehicle, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle, said driving condition detecting means comprising sensor means for generating a detection signal when a brake pedal provided in said vehicle is depressed; determination means, coupled to said driving condition detecting means, for determining whether said driving condition coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, said determination means comprising brake determination means for determining whether said vehicle is in a predetermined braking state, said determination means further comprising detection signal detecting means for determining whether or not said sensor means has generated said detection signal, said vehicle being in said predetermined braking state when said detection signal detecting means of said determination means determines that said sensor means has generated said detection signal; and control means, coupled to said suspensions and said determination means, for separately controlling said suspensions in accordance with said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that said suspensions in an identical group are set to an identical condition when said determination means determines that said driving condition coincides with said predetermined driving condition such that said brake determination means of said determination means determines that said vehicle is in said predetermined braking state.
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15. A suspension control system for controlling suspensions provided for wheels of a vehicle, said suspension control system comprising:
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driving condition detecting means for detecting a driving condition of said vehicle; determination means, coupled to said driving condition detecting means, for determining whether or not said driving condition detected by said driving condition detecting means coincides with a predetermined driving condition, said suspensions being grouped into a plurality of groups, each of said suspensions being switchable between a hard state and a soft state; control means, coupled to said suspensions and said determination means, for separately controlling said suspensions on the basis of said driving condition when said determination means determines that said driving condition does not coincide with said predetermined driving condition and for controlling said suspensions for each of said groups so that at least one of said suspensions in an identical group is set to said hard state when said determination means determines that said driving condition coincides with said predetermined driving condition. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification