Vehicle load measuring apparatus and method
First Claim
1. A vehicle load measuring apparatus, comprising:
- a load sensor attached to a vehicle member, which receives a weight of a vehicle and outputting signal indicative of the weight,load information control means including a load information computing section for arithmetically computing load information of the vehicle based on said signal output from the load sensor, and a load information memory section for storing said load information which has been arithmetically computed in the load information computing section, thereby the stored load information is outputted by the load information control means; and
vehicle posture information detection means for detecting a posture information of the vehicle, said vehicle posture information means including a vehicle speed sensor for detecting vehicle speed and a brake signal detection unit for detecting whether a brake is being applied,wherein, said load information control means up-dates data in the load information memory section when a signal from said vehicle speed sensor in the vehicle posture information detection means indicates a predetermined state of the vehicle.
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Accused Products
Abstract
A vehicle load measuring apparatus capable of eliminating errors caused by an accelerating force at the time of starting the vehicle or by an inertial force at the time of stopping the vehicle, and to obtain an accurate, stable and reliable load information of a loadage on the vehicle and a total weight of the vehicle. The apparatus operates such that, at the time of starting the vehicle, when the starting condition is detected based on a vehicle speed signal, the load information stored a predetermined time prior to the detection of the starting condition is utilized as a formal load data. At the time of stopping the vehicle, a stopped condition is detected based on the vehicle speed signal and also whether the brake is in the applied condition or not is determined. When the brake is not being applied, the load information at that point of time is used as the formal load data, and when the brake is still being applied, the load information is obtained after an elapsing of a predetermined period of time.
26 Citations
17 Claims
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1. A vehicle load measuring apparatus, comprising:
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a load sensor attached to a vehicle member, which receives a weight of a vehicle and outputting signal indicative of the weight, load information control means including a load information computing section for arithmetically computing load information of the vehicle based on said signal output from the load sensor, and a load information memory section for storing said load information which has been arithmetically computed in the load information computing section, thereby the stored load information is outputted by the load information control means; and vehicle posture information detection means for detecting a posture information of the vehicle, said vehicle posture information means including a vehicle speed sensor for detecting vehicle speed and a brake signal detection unit for detecting whether a brake is being applied, wherein, said load information control means up-dates data in the load information memory section when a signal from said vehicle speed sensor in the vehicle posture information detection means indicates a predetermined state of the vehicle. - View Dependent Claims (2, 3, 4, 9)
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5. A vehicle load measuring apparatus, comprising:
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a load sensor attached to a vehicle member, which receives a weight of a vehicle and outputting signal indicative of the weight, load information control means including a load information computing section for arithmetically computing load information of the vehicle based on said signal output from the load sensor, and a load information memory section for storing said load information which has been arithmetically computed in the load information computing section, thereby the stored load information is outputted by the load information control means; and vehicle posture information detection means for detecting a posture information of the vehicle, said vehicle posture information means including a vehicle speed sensor for detecting vehicle speed, wherein, said load information control means up-dates data in the load information memory section when a signal from said vehicle speed sensor in the vehicle posture information detection means indicates a predetermined state of the vehicle, and wherein said vehicle posture information detection means includes braking action detection means for detecting a braking action, and said load information control means determines whether the vehicle is in the stopped condition based on a signal detected by said vehicle speed detection means and determines whether the brake is still in the applied condition based on a signal detected by said braking action detection means, and when it is determined that the vehicle is in the stopped condition and the brake is not in the applied condition, the load information control means up-dates the data in said load information memory section based on the load information which has been arithmetically computed in said load information computing section. - View Dependent Claims (6, 7, 8)
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10. A method of measuring a load carried by a vehicle, comprising:
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detecting a signal indicative of a weight of the load received by at least one vehicle member, calculating load information based on said detected signal; storing said calculated load information; detecting a posture of the vehicle including vehicle speed and operation of a brake; and up-dating said stored load information when said detected posture indicates a predetermined state of the vehicle. - View Dependent Claims (11, 12, 13)
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14. A method of measuring a load carried by a vehicle, comprising:
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detecting a signal indicative of a weight of the load received by at least one vehicle member; calculating load information based on said detected signal; storing said calculated load information; detecting a posture of the vehicle including vehicle speed; up-dating said stored load information when said detected posture indicates a predetermined state of the vehicle, wherein said posture detecting step includes detecting a braking action, and said load information calculating step includes determining whether the vehicle is in the stopped condition based on said detected vehicle speed and determining whether a brake is still in the applied condition based on said detected braking action, and when it is determined that the vehicle is in the stopped condition and the brake is not in the applied condition, said up-dating step up-dates said stored load information based on the calculated load information. - View Dependent Claims (15, 16, 17)
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Specification