EP0119564A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Suspension system for motor vehicle having variable suspension characteristics
Assignee: Mazda Motor Corp
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Filing: 1984-03-09
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Granted: —
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Expires: 2004-03-09
Abstract
Abstract Suspension mechanisms for motor vehicle include dampers of variable damping powers and air springs of variable spring coefficients so that the suspension characteristics are changed between soft and hard modes. The suspension mechanisms are provided with a controller for producing a control signal only when a differential value between a value of a last steering angle and an average value of steering angles is larger than a predetermined value to change the suspension characteristics to the hard mode. In accordance with this arrangement, the suspension characteristics are changed to the hard mode only when the rolling angle of the vehicle exceeds a predetermined value.
Inventors
- 👤 Toshimichi C/O Toyo Kogyo Co. Ltd. Tokunaga
- 👤 Seita C/O Toyo Koyo Co. Ltd Kanai
- 👤 Yoshiaki C/O Toyo Kogyo Co. Ltd Anan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:46
CPC Classifications
B; B60; B60G; B60G15/00; B60G15/02; B60G15/06; B60G15/062; B60G15/063; B60G15/07; B60G15/08; B60G15/12; B60G15/14; B60G17/00; B60G17/015; B60G17/016; B60G17/0162; B60G17/019; B60G2202/00; B60G2202/10; B60G2202/12; B60G2202/15; B60G2202/152; B60G2400/00; B60G2400/40; B60G2400/41; B60G2400/44; B60G2500/00; B60G2500/10; B60G2500/102; B60G2500/20; B60G2500/22; B60G2600/00; B60G2600/02; B60G2600/12; B60G2600/14; B60G2600/18; B60G2600/184; B60G2600/22; B60G2600/26; B60G2800/00; B60G2800/01; B60G2800/012
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
161 words
A motor vehicle including a body, wheels for supporting said body, suspension means between said body and respective ones of said wheels, said suspension means including resistance means which provide resistance to vertical movements of said body with respect to said wheels with resistance characteristics, adjusting means for adjusting said resistance characteristics of said suspension means to change said resistance characteristics, steering angle sensing means for producing steering angle signals, control means for controlling said adjusting means, said control means including means for comparing a most recently produced steering angle signal with an average value of previously produced steering angle signals and generating a difference signal denoting a difference between said most recently produced steering angle signal and said average value of said steering angle signals, and means for comparing said difference signal with a predetermined value and operating said adjusting means to strengthen said resistance characteristics of said suspension means when said difference signal is larger than said predetermined value.
Claim 2
Dependent Claim
161 words
A motor vehicle including a body, wheels for supporting said body, suspension means between said body and respective ones of said wheels, said suspension means including resistance means which provide resistance to vertical movements of said body with respect to said wheels with resistance characteristics, adjusting means for adjusting said resistance characteristics of said suspension means to change said resistance characteristics, steering angle sensing means for producing steering angle signals, control means for controlling said adjusting means, said control means including means for comparing a most recently produced steering angle signal with an average value of previously produced steering angle signals and generating a difference signal denoting a difference between said most recently produced steering angle signal and said average value of said steering angle signals, and means for comparing said difference signal with a predetermined value and operating said adjusting means to strengthen said resistance characteristics of said suspension means when said difference signal is larger than said predetermined value.
Claim 3
Dependent Claim
34 words
A motor vehicle in accordance with claim 1 in which - said resistance means includes damper means having variable damping rate,.said adjusting means including means for varying the damping rate of said damping means.
Claim 4
Dependent Claim
36 words
A motor vehicle in accordance with claim 2 in which said control means includes means for calculating an average value of a plurality of previously produced steering angle signals and a just produced steering angel signal.
Claim 5
Dependent Claim
36 words
A motor vehicle in accordance with claim 2 in which said resistance means further include spring means having a spring coefficient, said adjusting means further having means for varying the spring coefficient of said pring means
Claim 6
Dependent Claim
17 words
A motor vehicle in accordance with claim 4 in which said spring means includes air spring means.
Claim 7
Dependent Claim
31 words
A motor vehicle in accordance with claim 2 in which said damper means includes oil damper means of variable orifice type having orifice means of variable diameter between two oil chambers.
Claim 8
Dependent Claim
35 words
A motor vehicle in accordance with claim 1 in which said resistance means include air spring means having a spring coefficient, said adjusting means having means for varying the spring coefficient of said spring means.
Claim 9
Dependent Claim
50 words
A motor vehicle in accordance with claim 7 in which said control means includes means for calculating an average value of all steering angle signals generated in a steering operation, said control means comparing said most recently produced steering angle signal with said average value of said steering angle signals.
Claim 10
Dependent Claim
56 words
A motor vehicle in accordance with claim 1 in which said control means includes means for calculating a weighted average value of a plurality of previously produced steering angle signals and a just produced steering angle signal, said control means comparing said last steering angle signal with said weighted average value of said steering angle signals.
Claim 11
Dependent Claim
37 words
A motor vehicle in accordance with claim 9 in which said steering angle sensing means is variable electrical resistance means in which a resistance value thereof is varied in accordance with a rotation of a steering wheel
References Cited (Backward Citations)
No citation records indexed.
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