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US4804058A Expired / Lapsed US ⏱️ 0.0 years remaining

Arrangement for controlling at least one magnitude influencing the driving torque of an internal combustion engine of a motor vehicle

Assignee: Daimler Benz AG
•
Filing: 1987-12-23
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Granted: 1989-02-14
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Expires: 2007-12-23
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Abstract

Abstract An arrangement for the control of at least one magnitude influencing the driving torque of an internal combustion engine of a motor vehicle in conjunction with a drive slippage regulating system is provided with a regulating system which undertakes the follow-up control of this magnitude to a predetermined desired value in steps dependent on vehicle- and outside-dependent magnitudes with an increase velocity also dependent on vehicle and outside, as a result of which excess torques reducing the traction and lateral guidance force are avoided and regulating operations which become necessary are significantly shortened.

Inventors

  • 👤 Heinz Leiber
  • 👤 Hans Ohnemueller
  • 👤 Klaus Kastner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 15:17
CPC Classifications
B; B60; B60K; B60K26/00; B60K26/04; B60K28/00; B60K28/10; B60K28/16; B60W; B60W2510/00; B60W2510/06; B60W2510/068

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 327 words
An arrangement for controlling at least one magnitude influencing the driving torque of an internal combustion engine of a motor vehicle, comprising a drive pedal, position transmitter means converting the drive pedal position into a desired value signal, comparator means in which the magnitude to be controlled is compared with the desired value signal, adjusting means which produces a signal for the increase of the magnitude to be controlled when the desired value signal exceeds the actual value and which is operable to produce a signal for reducing the magnitude to be controlled when the desired value signal drops below the actual value, first regulating means which regulates the magnitude influencing the driving torque if the driven wheels of the motor vehicle tend to slip, and second regulating means which is operable to trigger a regulating operation when the desired value signal is larger than the actual value of the magnitude to be regulated and at the same time the desired value-increase velocity exceeds a predeterminable threshold value, said second regulating means being further operable to specify an internal desired value for the magnitude to be regulated coordinated to the driving velocity and/or the outside temperature and causing a follow-up control of the actual value to the internal desired value with an increase velocity dependent on magnitudes determining the driving torque, said second regulating means keeping the actual value constant for a predetermined holding period after reaching the internal desired value and after the lapse of the holding period increasing the internal desired value by a factor depending on at least one predetermined influencing magnitude and subsequently again causing a follow-up of the actual value, keeping the same constant for the holding period and repeating these operating steps until the actual value is equal to the desired value signal and therewith and the regulating operation is terminated, the regulating operation being interrupted as soon and for such length of time as the first regulating means is active.
Claim 2
Dependent Claim 327 words
An arrangement for controlling at least one magnitude influencing the driving torque of an internal combustion engine of a motor vehicle, comprising a drive pedal, position transmitter means converting the drive pedal position into a desired value signal, comparator means in which the magnitude to be controlled is compared with the desired value signal, adjusting means which produces a signal for the increase of the magnitude to be controlled when the desired value signal exceeds the actual value and which is operable to produce a signal for reducing the magnitude to be controlled when the desired value signal drops below the actual value, first regulating means which regulates the magnitude influencing the driving torque if the driven wheels of the motor vehicle tend to slip, and second regulating means which is operable to trigger a regulating operation when the desired value signal is larger than the actual value of the magnitude to be regulated and at the same time the desired value-increase velocity exceeds a predeterminable threshold value, said second regulating means being further operable to specify an internal desired value for the magnitude to be regulated coordinated to the driving velocity and/or the outside temperature and causing a follow-up control of the actual value to the internal desired value with an increase velocity dependent on magnitudes determining the driving torque, said second regulating means keeping the actual value constant for a predetermined holding period after reaching the internal desired value and after the lapse of the holding period increasing the internal desired value by a factor depending on at least one predetermined influencing magnitude and subsequently again causing a follow-up of the actual value, keeping the same constant for the holding period and repeating these operating steps until the actual value is equal to the desired value signal and therewith and the regulating operation is terminated, the regulating operation being interrupted as soon and for such length of time as the first regulating means is active.
Claim 3
Dependent Claim 15 words
An arrangement according to claim 1, wherein the predeterminable threshold value is a fixed value.
Claim 4
Dependent Claim 21 words
An arrangement according to claim 1, wherein the predeterminable threshold value is dependent on the vehicle velocity and the outside temperature.
Claim 5
Dependent Claim 52 words
An arrangement according to claim 1, wherein a value is specified as internal starting-desired value which corresponds to the propulsion torque on icy road increased by a predetermined amount, when the vehicle velocity lies below a predetermined vehicle velocity threshold value and the outside temperature lies below a predetermined temperature threshold value.
Claim 6
Dependent Claim 52 words
An arrangement according to claim 1, wherein a value is specified as internal starting desired value which corresponds to the propulsion torque on wet road increased by a predetermined amount, when the vehicle velocity lies below a predetermined velocity threshold value and the outside temperature lies above a predetermined temperature threshold value.
Claim 7
Dependent Claim 43 words
An arrangement according to claim 1, wherein the actual value increased by a predetermined amount at the instant of the occurrence of the triggering signal is specified as internal starting desired value, when the vehicle velocity lies above a predetermined velocity threshold value.
Claim 8
Dependent Claim 67 words
An arrangement according to claim 1, wherein the increase velocity with which the actual value, is caused to follow the desired value is coordinated to the actual value, the engine rotational speed of the internal combustion engine and the rotational speed of the driven wheels of the motor vehicle and is adjusted by a pulse duty factor coordinated thereto of the input signal of the adjusting means.
Claim 9
Dependent Claim 21 words
An arrangement according to claim 1, wherein the factor by which the internal desired value is increased, is greater than "one".
Claim 10
Dependent Claim 29 words
An arrangement according to claim 8, wherein an influencing magnitude for the selection of the factor is the vehicle cross acceleration whose increase causes a reduction of said factor.
Claim 11
Dependent Claim 28 words
An arrangement according to claim 8, wherein an influencing magnitude for the determination of said factor is the vehicle velocity whose increase effects an increase of said factor.
Claim 12
Dependent Claim 28 words
An arrangement according to claim 8, wherein an influencing magnitude for the selection of said factor is the outside temperature whose increase effects an increase of said factor.
Claim 13
Dependent Claim 28 words
An arrangement according to claim 8, wherein an influencing magnitude for the selection of said factor is the engine temperature whose increase effects an increase of said factor.
Claim 14
Dependent Claim 40 words
An arrangement according to claim 8, wherein an influencing magnitude for the selection of said factor is the temperature of a catalyst, below the temperature of which necessary for an orderly function the factor is kept to its minimum value.
Claim 15
Dependent Claim 52 words
An arrangement according to claim 4, wherein a value is specified as internal starting desired value which corresponds to the propulsion torque on wet road increased by a predetermined amount, when the vehicle velocity lies below a predetermined velocity threshold value and the outside temperature lies above a predetermined temperature threshold value.
Claim 16
Dependent Claim 43 words
An arrangement according to claim 14, wherein the actual value increased by a predetermined amount at the instant of the occurrence of the triggering signal is specified as internal starting desired value, when the vehicle velocity lies above a predetermined velocity threshold value.
Claim 17
Dependent Claim 28 words
An arrangement according to claim 9, wherein an influencing magnitude for the determination of said factor is the vehicle velocity whose increase effects an increase of said factor.
Claim 18
Dependent Claim 28 words
An arrangement according to claim 16, wherein an infuencing magnitude for the selection of said factor is the outside temperature whose increase effects an increase of said factor.
Claim 19
Dependent Claim 28 words
An arrangement according to claim 17, wherein an influencing magnitude for the selection of said factor is the engine temperature whose increase effects an increase of said factor.
Claim 20
Dependent Claim 40 words
An arrangement according to claim 18, wherein an influencing magnitude for the selection of said factor is the temperature of a catalyst, below the temperature of which necessary for an orderly function the factor is kept to its minimum value.
Claim 21
Dependent Claim 67 words
An arrangement according to claim 8, wherein the increase velocity with which the actual value, is caused to follow the desired value is coordinated to the actual value, the engine rotational speed of the internal combustion engine and the rotational speed of the driven wheels of the motor vehicle and is adjusted by a pulse duty factor coordinated thereto of the input signal of the adjusting means.

References Cited (Backward Citations)

DE3019562A1 Cited
US4511014A Cited
EP0072395A2 Cited
US4682667A Cited
DE3504181A1 Cited
DE3408002A1 Cited
US4763262A Cited
US4762196A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-02-14 1992-08-15 1993-02-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-02-14 1996-08-15 1997-02-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-02-14 2000-08-15 2001-02-14 $7700.00 Window Closed / Lapsed

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