US3686935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for monitoring the performance of a draft vehicle
Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1970-11-17
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Granted: 1972-08-29
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Expires: 1990-11-17
Abstract
Abstract A draft vehicle, especially for agricultural use, having an engine, preferably of the fuel injection type, and driving wheels and a transmission connecting the engine to the wheels and including a torque converter. Measuring elements measure the circumferential speed of the driving wheels, the speed of the vehicle, the speed of the engine, the rate of fuel supply to the engine, the torque supplied to the converter and the torque supplied by the converter. The thus measured values are compared to obtain values representative of the slip of the driving wheels and the efficiency of the engine and the efficiency of the converter. Indicators supplied with the obtained values are disposed within the view of the vehicle operator.
Inventors
- 👤 Oswald May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:02
CPC Classifications
A; A01; A01B; A01B67/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
82 words
In a vehicle, especially a draft vehicle for agricultural use and having a driving engine, driving wheels and transmission means connecting the engine to the driving wheels and including a torque converter; first means operable to measure the slip of said driving wheels, second means operable to measure the efficiency of said engine, third means operable to measure the efficiency of said converter, and first, second and third indicators connected to said first, second and third means for indicating the measured values.
Claim 2
Dependent Claim
82 words
In a vehicle, especially a draft vehicle for agricultural use and having a driving engine, driving wheels and transmission means connecting the engine to the driving wheels and including a torque converter; first means operable to measure the slip of said driving wheels, second means operable to measure the efficiency of said engine, third means operable to measure the efficiency of said converter, and first, second and third indicators connected to said first, second and third means for indicating the measured values.
Claim 3
Dependent Claim
41 words
A vehicle according to claim 1 which includes fourth means connected to said first, second and third means to measure the overall efficiency of said vehicle, and a fourth indicator connected to said fourth means to indicate the value measured thereby.
Claim 4
Dependent Claim
27 words
A vehicle according to claim 2 which includes a control panel within the view of the operator of the vehicle and on which said indicators are mounted.
Claim 5
Dependent Claim
228 words
A vehicle according to claim 1 which said first, second and third means comprises a first measuring means measuring the circumferential speed of said driving wheels, a second measuring means measuring the speed of said vehicle, a third measuring means measuring the rate of fuel supply to said engine, a fourth measuring means measuring the speed of said engine, a fifth measuring means measuring the torque at the input side of said converter, a sixth measuring means measuring the torque at the output side of said converter, each said measuring means supplying a respective output signal in conformity with the value measured thereby; a first component receiving signals from said first and sixth measuring means, a second component receiving signals from said third and fourth measuring means, a third component receiving signals from said fourth and fifth measuring means, each component supplying an output signal in conformity with the product of the signals received thereby; a first calculator receiving signals from said first and second measuring means, a second calculator receiving signals from said second and third components, and a third calculating receiving signals from said first and third components, each calculator supplying an output signal in conformity with the quotient of the signals received thereby; and said first, second and third indicators being connected to receive the output signals from said first, second and third calculators, respectively.
Claim 6
Dependent Claim
27 words
A vehicle according to claim 4 in which the output signal from each said measuring means and from each said component varies according to a logarithmic scale.
Claim 7
Dependent Claim
25 words
A vehicle according to claim 4 in which said transmission means includes a shiftable gear transmission interposed between said torque converter and said driving wheels.
Claim 8
Independent Claim
112 words
The method of monitoring the operation of a draft vehicle having an engine and driving wheels and a torque converter connecting the engine to the wheels which comprises in combination: continuously measuring the circumferential speed of the driving wheels, the speed of the vehicle, the speed of the engine, the rate of fuel supply to the engine, the torque supplied to the converter, and the torque supplied by the converter; continuously comparing the values thus measured to obtain values representing the slip of said wheels, the efficiency of the engine, and the efficiency of said converter; and indicating the thus obtained measured values simultaneously for the benefit of the vehicle operator monitoring.
Claim 9
Independent Claim
112 words
The method of monitoring the operation of a draft vehicle having an engine and driving wheels and a torque converter connecting the engine to the wheels which comprises in combination: continuously measuring the circumferential speed of the driving wheels, the speed of the vehicle, the speed of the engine, the rate of fuel supply to the engine, the torque supplied to the converter, and the torque supplied by the converter; continuously comparing the values thus measured to obtain values representing the slip of said wheels, the efficiency of the engine, and the efficiency of said converter; and indicating the thus obtained measured values simultaneously for the benefit of the vehicle operator monitoring.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |