Method for initializing the mass of a motor vehicle
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16H-059/52
F02D-023/00
G06Q-050/22
출원번호
US-0045027
(2013-10-03)
등록번호
US-9182033
(2015-11-10)
우선권정보
DE-10 2012 219 699 (2012-10-29)
발명자
/ 주소
Mair, Roland
Schneider, Florian
출원인 / 주소
ZF Friedrichshafen AG
대리인 / 주소
Davis & Bujold, P.L.L.C.
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A method of initializing the mass of a motor vehicle, in particular when the motor vehicle is re-started or when it is at rest, for the control of a starting process of the motor vehicle. From measured and/or calculated operating parameters of the motor vehicle, an operating situation of the motor v
A method of initializing the mass of a motor vehicle, in particular when the motor vehicle is re-started or when it is at rest, for the control of a starting process of the motor vehicle. From measured and/or calculated operating parameters of the motor vehicle, an operating situation of the motor vehicle is determined and, on the basis of the operating situation determined and as a function of operating situation dependent loading and/or unloading patterns, the mass of the motor vehicle is initialized.
대표청구항▼
1. A method of initializing a mass of an motor vehicle, either before the motor vehicle is started or when the motor vehicle is at rest, for control of a starting process of the motor vehicle, the motor vehicle comprising a timepiece, a door switch, and at least one of a navigation unit and a GPS un
1. A method of initializing a mass of an motor vehicle, either before the motor vehicle is started or when the motor vehicle is at rest, for control of a starting process of the motor vehicle, the motor vehicle comprising a timepiece, a door switch, and at least one of a navigation unit and a GPS unit, the method comprising the steps of: determining, with a control device of the motor vehicle, an operating situation of the motor vehicle from at least one of measured and calculated operating parameters of the motor vehicle which are measured by a plurality of operating parameter measurement devices;specifying at least one of time and date data via the timepiece, door switch signals via the door switch, and current navigation data via at least one of the navigation unit and GPS unit; andat least one of the steps of: considering, with the control device, the current navigation data in relation to typical navigation data that correspond to typical loading and unloading points when determining the operating situation of the motor vehicle;considering, with the control device, the time and the date data in relation to operating cycles when determining the operating situation of the motor vehicle; andevaluating, with the control device, the door-switch signals when determining the operating situation of the motor vehicle;initializing, with the control device, the mass of the motor vehicle on a basis of the determined operating situation and as a function of at least one of operating situation dependent loading and unloading patterns;permitting starting of an engine of the motor vehicle under a first determined operating situation; andpreventing starting of the engine of the motor vehicle under a second determined operating situation. 2. The method according to claim 1, further comprising the step of initializing, with the control device, the mass of the motor vehicle on the basis of the determined operating situation only if an error counter value, for the determined operating situation, is smaller than a limit value. 3. The method according to claim 1, further comprising the steps of calculating, with the control device, the mass of the motor vehicle, following the initialization of the mass of the motor vehicle, either during or after the starting process, and comparing the initialized mass of the motor vehicle with the calculated mass of the motor vehicle to determine whether the initialization of the mass of the motor vehicle lies either within or outside an admissible tolerance band around the calculated mass. 4. The method according to claim 3, further comprising the step of adopting, with the control device, at least one of the operating situation dependent loading pattern and the operating situation dependent unloading pattern, if the initialization of the mass of the motor vehicle is within the admissible tolerance band on the basis of the comparison between the initialized mass of the motor vehicle and the calculated mass of the motor vehicle. 5. The method according to claim 3, further comprising the step of reducing an error counter value, which corresponds to the determined operating situation, by an increment, if the initialized mass of the motor vehicle lies within the admissible tolerance band. 6. The method according to claim 5, further comprising the step of activating a respective, previously inactive one of the operating situation dependent loading and unloading patterns, if the error counter value is smaller than a first limit value. 7. The method according to claim 3, further comprising the step of increasing the error counter value by an increment, if the initialized mass of the motor vehicle lies outside the admissible tolerance band. 8. The method according to claim 7, further comprising the step of deactivating a respective, previously active one of the operating situation dependent loading and unloading patterns, if the error counter value exceeds a second limit value. 9. A method of estimating an operating situation of a transmission of a motor vehicle comprising a transmission control device, a processor, a memory and data interfaces, the method comprising the steps of: measuring and calculating operating parameters from at least one of motion, speed and direct measurement devices, a time measurement device, a distance measurement device and a level sensor;receiving and evaluating the operating parameters by the processor;determining an operating situation, and estimating an operating situation dependent mass of the motor vehicle based on the determined operating situation by the processor;communicating with the memory which stores the operating parameters, the operating situations, operating situation dependent loading and unloading patterns,the transmission control device controlling a starting process of the motor vehicle by the steps of: estimating the operating situation dependent mass of the motor vehicle, either before the motor vehicle is started or when the motor vehicle is at rest,determining, with the processor of the transmission, the operating situation of the motor vehicle from the at least one of the measured and the calculated operating parameters of the motor vehicle,estimating the operating situation dependent mass of the motor vehicle on a basis of the determined operating situation of the motor vehicle and as a function of the operating situation dependent loading and unloading patterns;specifying at least one of time and date data via the time measuring device, door-switch signals via a door switch, and current navigation data via at least one of a navigation unit and a GPS unit; andat least one of the steps of: considering, with the control device, the current navigation data in relation to typical navigation data that correspond to typical loading and unloading points when determining the operating situation of the motor vehicle;considering, with the control device, the time and the date data in relation to operating cycles when determining the operating situation of the motor vehicle; andevaluating, with the control device, the door-switch signals when determining the operating situation of the motor vehicle;wherein the step of controlling a starting process of the motor vehicle comprises one of either starting or preventing the starting of an engine of the motor vehicle on the basis of the determined operating situation and as the function of at least one of operating situation dependent loading and unloading patterns. 10. The method according to claim 1, further comprising the step of operating one of an automated and an automatic change-speed transmission of the motor vehicle based on the initialized mass. 11. The method according to claim 1, further comprising the step of initializing the mass of the motor vehicle after unhitching of a trailer from the motor vehicle, and recognizing unhitching of the trailer from the motor vehicle when each of the following operating parameters cumulatively occur: a) stopping the motor vehicle;b) maintaining the motor vehicle at rest for at least a relatively short duration of time;c) the current mass of the motor vehicle being greater than an unladen mass of the motor vehicle;d) detecting, via an inclination sensor, that a level of the motor vehicle was raised; ande) moving the vehicle forward by at least a distance which corresponds approximately to a length of the motor vehicle. 12. The method according to claim 1, further comprising the step of initializing the mass of the motor vehicle after unhitching of a trailer from the motor vehicle, and recognizing unhitching of the trailer from the motor vehicle when each of the following operating parameters cumulatively occur: a) driving the motor vehicle relatively slowly in reverse at least over a distance that corresponds approximately to a length of the motor vehicle;b) a current mass of the motor vehicle corresponds approximately to an unladen mass of the motor vehicle;c) maintaining the motor vehicle at rest;d) detecting, via an inclination sensor, that a level of the motor vehicle is raised and then lowered; ande) then moving the motor vehicle forward at a relative low speed. 13. The method according to claim 1, further comprising the step of initializing the mass of the motor vehicle after unhitching of a trailer from the motor vehicle, and recognizing unhitching of the trailer from the motor vehicle when each of the following operating parameters cumulatively occur: a) stopping and maintaining the motor vehicle at rest for at least a time period in which the time period is long enough for a trailer clamp on the motor vehicle to be opened and for compressed air connections and electrical connections on the trailer to be disconnected;b) storing time period, which is determined empirically, in a control system for the motor vehicle; andc) then driving the motor vehicle forward for a relatively short distance. 14. The method according to claim 1, further comprising the step of initializing the mass of the motor vehicle after hitching of a trailer from the motor vehicle, and recognizing hitching of the trailer from the motor vehicle when each of the following operating parameters cumulatively occur: a) stopping the motor vehicle and then driving the motor vehicle relatively slowly in reverse over a defined distance;b) bring the motor vehicle to rest; andc) maintaining the vehicle at rest for a defined time that corresponds at least to a time required in order to close a trailer clamp and connect pneumatic and electrical connections to the trailer. 15. A method of estimating a mass of a motor vehicle for controlling a starting process with a transmission control system before the motor vehicle starts moving, wherein the motor vehicle comprises a motion measuring device for measuring vehicle motion, and a speed and a direction of the vehicle motion, a time measuring device for measuring time, a distance measuring device for measuring a distance over which the motor vehicle moves, an inclination sensor for measuring a level of the motor vehicle, a trailer clamp for coupling a trailer to the motor vehicle, pneumatic and electrical connections for connecting to the trailer, a timepiece that specifies at least one of time and date data, a door switch which specifies door-switch signals, and a GPS navigation unit specifies current navigation data, the method comprising the steps of: at least one of measuring and calculating at least one of a motion parameter, a speed parameter, a direction parameter, a time parameter, a distance parameter and a level parameter with at least one of the motion measuring device, the time measuring device, the distance measuring device and the inclination sensor;receiving, with the transmission control system, at least one of the motion parameter, the speed parameter, the direction parameter, the time parameter, the distance parameter and the level parameter;determining, with the transmission control system, a vehicle operating situation based on the at least one of the motion parameter, the speed parameter, the direction parameter, the time parameter, the distance parameter and the level parameter;comparing, with the transmission control system, an operating situation specific error value of an error value counter that corresponds to the determined vehicle operating situation to a limit value that corresponds to the determined vehicle operating situation;if the operating situation specific error value is lower than the limit value, estimating, with the transmission control system, the mass of the motor vehicle based on an operating situation dependent pattern that corresponds to the determined vehicle operating situation;controlling the starting process of the motor vehicle as a function of the estimated mass of the motor vehicle;calculating, with the transmission control system, an actual mass of the motor vehicle after the motor vehicle starts moving, and comparing the estimated mass of the motor vehicle to the actual mass of the motor vehicle;increasing the operating situation specific error value of the error value counter, if the estimated mass of the motor vehicle is outside a tolerance range of the actual mass of the motor vehicle;decreasing the operating situation specific error value of the error counter, if the estimated mass of the motor vehicle is within the tolerance range of the actual mass of the motor vehicle; andat least one of the steps of: permitting, with the transmission control system, the estimation of the mass of the motor vehicle, if the current navigation data correlates to typical navigation data of typical loading and unloading points;permitting, with the transmission control system, the estimation of the mass of the motor vehicle, if the time and the date data correlates to repeated operating cycles; anddetermining, with the transmission control system, the vehicle operating situation based on the door-switch signals in combination with the at least one of the motion parameter, the speed parameter, the direction parameter, the time parameter, the distance parameter and the level parameter.
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