US5916062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and system for aiding a starting movement of a vehicle
Assignee: Bayerische Motoren Werke AG
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Filing: 1997-07-31
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Granted: 1999-06-29
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Expires: 2017-07-31
Abstract
Abstract The invention relates to a process and a system for aiding a starting movement of a vehicle. Problems occur particularly when starting on a hill or on a steeply sloping road because it is difficult or impossible for the vehicle operator to simultaneously release the foot brake pedal and operate the accelerator pedal and thus provide an engine torque necessary for the corresponding starting operation. It is an object of the invention to provide a process and a system for aiding a starting movement of a vehicle by means of which the starting movement can be carried out without problems and in an uncomplicated manner and without endangering other traffic participants. In the process and system according to the invention, this is achieved in that the rest position of the vehicle is ensured by means of a braking intervention by way of an external power or secondary brake circuit if the braking force exercised by the vehicle operator is not sufficient. The engine torque generated by the driving engine of the vehicle is sensed and the braking intervention is terminated as of a defined engine torque.
Inventors
- 👤 Achim Siepker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:22
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60T7/122; B60T2201/00; B60T2201/06
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
82 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: determining a brake pressure value required to maintain said vehicle in said stopped position; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; sensing an engine torque generated by an engine of the vehicle; and terminating said applying step when said engine torque exceeds a limit value determined as a function of said brake pressure value.
Claim 2
Dependent Claim
82 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: determining a brake pressure value required to maintain said vehicle in said stopped position; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; sensing an engine torque generated by an engine of the vehicle; and terminating said applying step when said engine torque exceeds a limit value determined as a function of said brake pressure value.
Claim 3
Dependent Claim
20 words
A process according to claim 1, wherein the brake pressure is applied only when predetermined vehicle operating conditions are met.
Claim 4
Dependent Claim
43 words
A process according to claim 2, wherein said operating conditions consist of at least one of a velocity of the vehicle, a disengagement signal of a clutch of the vehicle, an operating signal of said engine, and an activation signal for said process.
Claim 5
Dependent Claim
31 words
A process according to claim 1, wherein in said applying step, said brake pressure is gradually built up, at least as a function of said vehicle velocity and/or of the time.
Claim 6
Dependent Claim
32 words
A process according to claim 1, wherein said brake pressure value is determined as a function of a sensed brake pressure at the moment at which the velocity has just reached zero.
Claim 7
Dependent Claim
23 words
A process according to claim 5, wherein said brake pressure value is determined as a function an angle of tilt of the vehicle.
Claim 8
Dependent Claim
24 words
A process according to claim 1, wherein said brake pressure value is determined as a function of an angle of tilt of the vehicle.
Claim 9
Dependent Claim
19 words
A process according to claim 1, wherein said brake pressure value is determined as a function of vehicle-specific parameters.
Claim 10
Dependent Claim
21 words
A process according to claim 1, wherein in said terminating step the brake pressure is reduced corresponding to a predetermined course.
Claim 11
Dependent Claim
30 words
A process according to claim 1, wherein said applying step is conducted when the vehicle is parked with a parking brake applied and the engine or ignition is switched on.
Claim 12
Dependent Claim
24 words
A process according to claim 1, further comprising the step of displaying a visual signal to said vehicle operator when said process is activated.
Claim 13
Dependent Claim
93 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: determining a brake pressure value required to maintain said vehicle in said stopped position; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; sensing an engine torque generated by an engine of the vehicle; and terminating said applying step when said engine torque exceeds a limit value, wherein said brake pressure value is controlled to compensate for a change in temperature of brake disks of the vehicle.
Claim 14
Dependent Claim
93 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: determining a brake pressure value required to maintain said vehicle in said stopped position; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; sensing an engine torque generated by an engine of the vehicle; and terminating said applying step when said engine torque exceeds a limit value, wherein said brake pressure value is controlled to compensate for a change in temperature of brake disks of the vehicle.
Claim 15
Dependent Claim
32 words
A process according to claim 12, wherein in said determining step said brake pressure value is adjusted to compensate for a potential tension force loss in the event of a brake cooling.
Claim 16
Dependent Claim
147 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: sensing a torque generated by an engine of the vehicle; and sensing a velocity of the vehicle; and when said velocity is zero, further comprising the steps of: determining a brake pressure value required to maintain said velocity of zero; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; and terminating said applying step when said engine torque exceeds a limit value, wherein in said applying step, said brake pressure value is applied via a secondary brake circuit which is separate from a primary brake circuit controlled by said vehicle operator braking input, said secondary brake circuit being controllable by said braking control input independent of said vehicle operator braking input, said secondary brake circuit being a conventional anti-lock brake circuit.
Claim 17
Dependent Claim
147 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: sensing a torque generated by an engine of the vehicle; and sensing a velocity of the vehicle; and when said velocity is zero, further comprising the steps of: determining a brake pressure value required to maintain said velocity of zero; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; and terminating said applying step when said engine torque exceeds a limit value, wherein in said applying step, said brake pressure value is applied via a secondary brake circuit which is separate from a primary brake circuit controlled by said vehicle operator braking input, said secondary brake circuit being controllable by said braking control input independent of said vehicle operator braking input, said secondary brake circuit being a conventional anti-lock brake circuit.
Claim 18
Independent Claim
191 words
A system for aiding a starting movement of a vehicle from a stopped position, comprising: a control unit operably connected to a brake system of the vehicle; a velocity sensor which senses a velocity of the vehicle; a torque sensor which senses a torque generated by an engine of the vehicle; and a brake pressure sensor which senses a brake pressure in said brake system, wherein when said velocity sensor senses a velocity of zero, said control unit (a) determines a brake pressure value required to maintain said vehicle at said velocity of zero, (b) controls said brake system to apply said brake pressure value via a braking control input independent of a vehicle operator braking input, and (c) terminates application of said brake pressure value when said engine torque exceeds a limit value, wherein said control unit applies said brake pressure value via a secondary brake circuit which is separate from a primary brake circuit controlled by said vehicle operator braking input, said secondary brake circuit being controllable by said braking control input independent of said vehicle operator braking input, said secondary brake circuit being a conventional anti-lock brake circuit.
Claim 19
Independent Claim
191 words
A system for aiding a starting movement of a vehicle from a stopped position, comprising: a control unit operably connected to a brake system of the vehicle; a velocity sensor which senses a velocity of the vehicle; a torque sensor which senses a torque generated by an engine of the vehicle; and a brake pressure sensor which senses a brake pressure in said brake system, wherein when said velocity sensor senses a velocity of zero, said control unit (a) determines a brake pressure value required to maintain said vehicle at said velocity of zero, (b) controls said brake system to apply said brake pressure value via a braking control input independent of a vehicle operator braking input, and (c) terminates application of said brake pressure value when said engine torque exceeds a limit value, wherein said control unit applies said brake pressure value via a secondary brake circuit which is separate from a primary brake circuit controlled by said vehicle operator braking input, said secondary brake circuit being controllable by said braking control input independent of said vehicle operator braking input, said secondary brake circuit being a conventional anti-lock brake circuit.
Claim 20
Dependent Claim
132 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: determining a brake pressure value required to maintain said vehicle in said stopped position; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; sensing an engine torque generated by an engine of the vehicle; and terminating said applying step when said engine torque exceeds a limit value, wherein in said applying step, said brake pressure value is applied via a secondary brake circuit which is separate from a primary brake circuit controlled by said vehicle operator braking input, said secondary brake circuit being controllable by said braking control input independent of said vehicle operator braking input, said secondary brake circuit being a conventional anti-lock brake circuit.
Claim 21
Dependent Claim
132 words
A process for aiding a starting movement of a vehicle from a stopped position, comprising the steps of: determining a brake pressure value required to maintain said vehicle in said stopped position; applying said brake pressure value via a braking control input independent of a vehicle operator braking input; sensing an engine torque generated by an engine of the vehicle; and terminating said applying step when said engine torque exceeds a limit value, wherein in said applying step, said brake pressure value is applied via a secondary brake circuit which is separate from a primary brake circuit controlled by said vehicle operator braking input, said secondary brake circuit being controllable by said braking control input independent of said vehicle operator braking input, said secondary brake circuit being a conventional anti-lock brake circuit.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-06-28 | 2002-12-28 | 2003-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-28 | 2006-12-28 | 2007-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-28 | 2010-12-28 | 2011-06-29 | $7700.00 | Window Closed / Lapsed |