US5207198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for controlling the fuel quantity of internal combustion engines
Assignee: Robert Bosch GmbH
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Filing: 1990-06-29
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Granted: 1993-05-04
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Expires: 2010-06-29
Abstract
Abstract A system for avoiding the effects of jerking in the drive train of a motor vehicle driven by an internal combustion engine, comprising a device for limiting the quantity of fuel supplied to the combustion chambers of the engine controlled with the aid of a transducer for measuring the approach of two coupling parts of a coupling mounted in the drive shaft to the gearing system of the motor vehicle. If a value of a predetermined approach speed is exceeded, then the drive torque output by the engine is reduced, by reducing the fuel quantity, such that the coupling parts come into contact gently with one another. After that, the output torque of the engine can be further increased arbitrarily.
Inventors
- 👤 Hermann Eisele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:11
CPC Classifications
B; B60; B60W; B60W30/00; B60W30/18; B60W10/00; B60W10/02; B60W10/04; B60W30/1819; F; F02; F02D; F02D41/00; F02D41/02; F02D41/14; F02D41/1497; B60W2510/00; B60W2510/02; B60W2510/0208; B60W2510/0225; B60W2510/0241; B60W2510/06; B60W2510/0638; B60W2520/00; B60W2520/10; F02B; F02B1/00; F02B1/02; F02B1/04; F02D41/021; F02D41/0215
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
243 words
A system for controlling the quantity of fuel brought to combustion per combustion event in the combustion chambers of an internal combustion engine serving in particular to drive motor vehicles via a drive shaft comprising first and second drive shaft parts, including a transducer for producing a signal due to a rotation of said first and second drive shaft parts (5, 6) toward one another in a rotational direction, said transducer produces a control signal for varying the fuel quantity, said transducer is embodied as a proximity switch (29), which detects the approach of a first rotating coupling part (11) of said first drive shaft part (5) of said two-part drive shaft (2) of the engine to a second rotating coupling part (9) on said second drive shaft part (6) of the drive shaft (2) between the engine and a gearing system following the engine, wherein the coupling parts are adjustable counter to a restoring force (21) biasing between one another until mutually form-fitting contact on one another takes place, and for an existing distance between the two coupling parts the fuel quantity or the increase in fuel quantity is controlled such that a predetermined differential speed as the two coupling parts come to contact one another is not exceeded, and that after the coupling parts are in contact with one another this control of the fuel quantity is cancelled and the fuel quantity is controlled by other operating parameters of the engine.
Claim 2
Independent Claim
243 words
A system for controlling the quantity of fuel brought to combustion per combustion event in the combustion chambers of an internal combustion engine serving in particular to drive motor vehicles via a drive shaft comprising first and second drive shaft parts, including a transducer for producing a signal due to a rotation of said first and second drive shaft parts (5, 6) toward one another in a rotational direction, said transducer produces a control signal for varying the fuel quantity, said transducer is embodied as a proximity switch (29), which detects the approach of a first rotating coupling part (11) of said first drive shaft part (5) of said two-part drive shaft (2) of the engine to a second rotating coupling part (9) on said second drive shaft part (6) of the drive shaft (2) between the engine and a gearing system following the engine, wherein the coupling parts are adjustable counter to a restoring force (21) biasing between one another until mutually form-fitting contact on one another takes place, and for an existing distance between the two coupling parts the fuel quantity or the increase in fuel quantity is controlled such that a predetermined differential speed as the two coupling parts come to contact one another is not exceeded, and that after the coupling parts are in contact with one another this control of the fuel quantity is cancelled and the fuel quantity is controlled by other operating parameters of the engine.
Claim 3
Independent Claim
157 words
A method for controlling the quantity of fuel brought to combustion per combustion event in the combustion chambers of an internal combustion engine of a motor vehicle having a two part drive shaft leading away from an engine toward a power take off including first and second coupling parts which comprises detecting a signal of a transducer which detects rotational approach of the first drive shaft part (5) toward the engine relative to said second drive shaft part (6) toward the power takeoff to produce a control signal for varying the fuel quantity, directing the control signal to a control unit (30), determining a gas pedal setting, and directing a control signal according to the gas pedal setting to said control unit, directing a signal from said control unit to a fuel injection quantity control according to signals received from said transducer and said gas pedal setting to control an amount of fuel directed to said engine.
Claim 4
Independent Claim
157 words
A method for controlling the quantity of fuel brought to combustion per combustion event in the combustion chambers of an internal combustion engine of a motor vehicle having a two part drive shaft leading away from an engine toward a power take off including first and second coupling parts which comprises detecting a signal of a transducer which detects rotational approach of the first drive shaft part (5) toward the engine relative to said second drive shaft part (6) toward the power takeoff to produce a control signal for varying the fuel quantity, directing the control signal to a control unit (30), determining a gas pedal setting, and directing a control signal according to the gas pedal setting to said control unit, directing a signal from said control unit to a fuel injection quantity control according to signals received from said transducer and said gas pedal setting to control an amount of fuel directed to said engine.
Claim 5
Dependent Claim
39 words
A method as defined by claim 2, in which said transducer measures the distance of the coupling parts from one another upon load increase, and if a distance exists, the fuel quantity is limited to a low maximum value.
Claim 6
Dependent Claim
66 words
A method as defined by claim 2, in which upon a load increase, a measurement is made as to whether a distance exists between the coupling parts, and the approach speed of the coupling parts to one another is measured, compared with a predetermined set-point value and in accordance with the outcome of comparison, the fuel quantity is automatically adjusted to adhere to the set-point value.
Claim 7
Dependent Claim
72 words
A method as defined by claim 2, in which upon a load increase, a measurement is made as to whether the coupling parts are spaced apart from one another, and if they are spaced apart, the fuel quantity is limited to a predetermined value, which is increased or lowered with increasing proximity of the coupling parts, depending upon the outcome of a comparison between the instantaneous approach speed and a set-point value.
Claim 8
Dependent Claim
27 words
A method as defined by claim 3, in which a set-point value is variable as a function of operating parameters of the engine of the motor vehicle.
Claim 9
Dependent Claim
26 words
A method as defined by claim 3, in which a set-point value is variable as a function of rpm of the engine of the motor vehicle.
Claim 10
Dependent Claim
29 words
A method as defined by claim 3, in which a set-point value is variable as a function of the degree of approach of the coupling parts to one another.
Claim 11
Dependent Claim
27 words
A method as defined by claim 3, in which a set-point value is variable as a function of the approach speed, referred to the instantaneous engine rpm.
Claim 12
Dependent Claim
20 words
A method as defined by claim 3, in which a set-point value is variable as a function of the load.
Claim 13
Dependent Claim
29 words
A method as defined by claim 3, in which a set-point value is variable as a function of the speed of approach of the coupling parts to one another.
Claim 14
Dependent Claim
27 words
A method as defined by claim 4, in which the set-point value is variable as a function of operating parameters of the engine of the motor vehicle.
Claim 15
Dependent Claim
27 words
A method as defined by claim 5, in which the set-point value is variable as a function of operating parameters of the engine of the motor vehicle.
Claim 16
Dependent Claim
26 words
A method as defined by claim 4, in which the set-point value is variable as a function of rpm of the engine of the motor vehicle.
Claim 17
Dependent Claim
26 words
A method as defined by claim 5, in which the set-point value is variable as a function of rpm of the engine of the motor vehicle.
Claim 18
Dependent Claim
29 words
A method as defined by claim 4, in which the set-point value is variable as a function of the degree of approach of the coupling parts to one another.
Claim 19
Dependent Claim
29 words
A method as defined by claim 5, in which the set-point value is variable as a function of the degree of approach of the coupling parts to one another.
Claim 20
Dependent Claim
27 words
A method as defined by claim 4, in which the set-point value is variable as a function of the approach speed, referred to the instantaneous engine rpm.
Claim 21
Dependent Claim
27 words
A method as defined by claim 5, in which the set-point value is variable as a function of the approach speed, referred to the instantaneous engine rpm.
Claim 22
Dependent Claim
20 words
A method as defined by claim 4, in which the set-point value is variable as a function of the load.
Claim 23
Dependent Claim
20 words
A method as defined by claim 5, in which the set-point value is variable as a function of the load.
Claim 24
Dependent Claim
29 words
A method as defined by claim 4, in which the set-point value is variable as a function of the speed of approach of the coupling parts to one another.
Claim 25
Dependent Claim
29 words
A method as defined by claim 5, in which the set-point value is variable as a function of the speed of approach of the coupling parts to one another.
Claim 26
Dependent Claim
65 words
A method as defined by claim 2, in which upon a load increase, a measurement is made as to whether a distance exists between the coupling parts, and the approach of the coupling parts to one another is measured, compared with a predetermined set-point value and in accordance with the outcome of comparison, the fuel quantity is automatically adjusted to adhere to the set-point value.
Claim 27
Dependent Claim
70 words
A method as defined by claim 2, in which upon a load increase, a measurement is made as to whether the coupling parts are spaced apart from one another, and if they are spaced apart, the fuel quantity is limited to a predetermined value, which is increased or lowered with increasing proximity of the coupling parts, depending upon the outcome of a comparison between the approach and a set-point value.
Claim 28
Dependent Claim
28 words
A method as defined by claim 3, in which a set-point value is variable as a function of operating parameters of the engine and of the motor vehicle.
Claim 29
Dependent Claim
32 words
A method as defined by claim 3, in which a set-point value is variable as a function of rpm of the engine and a function of the speed of the motor vehicle.
Claim 30
Dependent Claim
29 words
A method as defined by claim 3, in which a set-point value is variable as a function of the degree of approach of the coupling parts to one another.
Claim 31
Dependent Claim
26 words
A method as defined by claim 4, in which the set-point value is variable as a function of operating parameters of the engine and motor vehicle.
Claim 32
Dependent Claim
26 words
A method as defined by claim 5, in which the set-point value is variable as a function of operating parameters of the engine and motor vehicle.
Claim 33
Dependent Claim
32 words
A method as defined by claim 4, in which the set-point value is variable as a function of rpm of the engine and a function of the speed of the motor vehicle.
Claim 34
Dependent Claim
32 words
A method as defined by claim 5, in which the set-point value is variable as a function of rpm of the engine and a function of the speed of the motor vehicle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |