US4480714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for preventing carrier from turning sideways
Assignee: TCM Corp
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Filing: 1982-06-08
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Granted: 1984-11-06
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Expires: 2002-06-08
Abstract
Abstract A system for preventing a vehicle from turning sideways comprises a unit for measuring the weight of a cargo on the vehicle, a unit for measuring the height of gravitational center of the cargo on the vehicle, a unit for measuring the steering angle of the vehicle, and a unit for measuring the running speed of the vehicle. The static stability of the vehicle is derived from the weight and the height of gravitational center of the vehicle and the measured weight and height of gravitational center of the cargo. The dynamic instability of the vehicle during turning is derived from the measured steering angle and running speed. First and second allowable limits are determined according to the static stability. When the dynamic instability exceeds the first allowable limit, the clutch of the vehicle is disengaged, and when the instability exceeds the second limit, the vehicle is braked. Upon the dynamic instability exceeding each allowable limit, information to that effect is given.
Inventors
- 👤 Takenobu Yabuta
- 👤 Takashi Sugata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:44
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60G; B60G17/00; B60G17/015; B60G17/0195; B62; B62D; B62D37/00; B62D37/04; B62D37/06; B60G2400/00; B60G2400/10; B60G2400/104; B60G2400/20; B60G2400/204; B60G2400/206; B60G2400/40; B60G2400/60; B60G2400/61; B60G2400/63; B60G2400/90; B60G2400/91; B60G2600/00; B60G2600/04; B60G2600/044; B60G2800/00; B60G2800/01; B60G2800/012; B60G2800/24; B60T2230/00; B60T2230/03
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
167 words
A system for preventing a vehicle from turning sideways comprising: means for measuring the weight of a cargo on the vehicle, means for measuring the height of gravitational center of the cargo on the vehicle, means for measuring the steering angle of the vehicle, means for measuring the running speed of the vehicle, means for determining the overall height of gravitational center of the vehicle and the cargo from the weight and the height of gravitational center of the vehicle and the measured weight and height of gravitational center of the cargo and deriving the static stability of the vehicle from the overall height of gravitational center, means for deriving the dynamic instability of the vehicle during turning from the measured steering angle and running speed, means for comparing the dynamic instability with the static stability and emitting a control signal when the instability is in excess of an allowable limit dependent on the stability, and speed control means for the vehicle controllable by the control signal.
Claim 2
Independent Claim
167 words
A system for preventing a vehicle from turning sideways comprising: means for measuring the weight of a cargo on the vehicle, means for measuring the height of gravitational center of the cargo on the vehicle, means for measuring the steering angle of the vehicle, means for measuring the running speed of the vehicle, means for determining the overall height of gravitational center of the vehicle and the cargo from the weight and the height of gravitational center of the vehicle and the measured weight and height of gravitational center of the cargo and deriving the static stability of the vehicle from the overall height of gravitational center, means for deriving the dynamic instability of the vehicle during turning from the measured steering angle and running speed, means for comparing the dynamic instability with the static stability and emitting a control signal when the instability is in excess of an allowable limit dependent on the stability, and speed control means for the vehicle controllable by the control signal.
Claim 3
Dependent Claim
29 words
A system as defined in claim 1 wherein a clutch provided between a running power source for the vehicle and drive wheels is disengaged by the speed control means.
Claim 4
Dependent Claim
17 words
A system as defined in claim 1 wherein the vehicle is braked by the speed control means.
Claim 5
Dependent Claim
44 words
A system as defined in claim 1 wherein the allowable limit is set in two stages, a clutch on the vehicle is disengaged upon the instability exceeding the first allowable limit, and the vehicle is braked upon the instability exceeding the second allowable limit.
Claim 6
Dependent Claim
32 words
A system as defined in claim 1 which further comprises display means for showing a graph representing the relation between the steering angle and the running speed allowable by the static stability.
Claim 7
Dependent Claim
24 words
A system as defined in claim 5 wherein a spot representing the measured steering angle and running speed is displayed on the display means.
Claim 8
Independent Claim
141 words
A system for preventing a vehicle from turning sideways comprising: means for measuring the weight of a cargo on the vehicle, means for measuring the height of gravitational center of the cargo on the vehicle, means for measuring the steering angle of the vehicle, means for measuring the running speed of the vehicle, means for determining the overall height of gravitational center of the vehicle and the cargo from the weight and the height of gravitational center of the vehicle and the measured weight and height of gravitational center of the cargo and deriving the static stability of the vehicle from the overall height of gravitational center, and display means for showing a graph representing the relation between the steering angle and the running speed allowable by the static stability and a spot representing the measured steering angle and running speed.
Claim 9
Independent Claim
141 words
A system for preventing a vehicle from turning sideways comprising: means for measuring the weight of a cargo on the vehicle, means for measuring the height of gravitational center of the cargo on the vehicle, means for measuring the steering angle of the vehicle, means for measuring the running speed of the vehicle, means for determining the overall height of gravitational center of the vehicle and the cargo from the weight and the height of gravitational center of the vehicle and the measured weight and height of gravitational center of the cargo and deriving the static stability of the vehicle from the overall height of gravitational center, and display means for showing a graph representing the relation between the steering angle and the running speed allowable by the static stability and a spot representing the measured steering angle and running speed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-06 | 1988-05-07 | 1988-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-06 | 1992-05-07 | 1992-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-06 | 1996-05-07 | 1996-11-06 | $7700.00 | Window Closed / Lapsed |