[특허]Vehicle mass detection system

Vehicle mass detection system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60W-020/00 B60W-010/06 B60W-010/08
출원번호	US-0796266 (2013-03-12)
등록번호	US-8892291 (2014-11-18)
발명자 / 주소	Nedorezov, Felix Jiang, Hong Shelton, Matthew John Colvin, Daniel Dai, Zhengyu Huffmaster, Roger Lyle
출원인 / 주소	Ford Global Technologies, LLC
대리인 / 주소	Kelley, David B.
인용정보	피인용 횟수 : 0 인용 특허 : 29

초록 ▼

A vehicle system and a method for calculating a vehicle mass is provided. In at least one embodiment, the system and the method measure current consumed by an electric machine of the vehicle to calculate vehicle mass. A controller of the vehicle uses the calculated mass to control operation of the vehicle, for example a four wheel drive, transmission, stability control, or brake system of the vehicle. A GPS and tire speed sensor system may be incorporated to detect the presence of a towed object, for example a trailer, and to further adjust operation of the vehicle.

대표청구항 ▼

1. A method of controlling an electric vehicle based on vehicle mass, the method comprising: providing at least a portion of vehicle propulsive torque with an electric machine;while a speed of the electric machine is changing, measuring current consumed by the electric machine at two different instances of time;calculating a mass of the vehicle based on the measured currents; andcontrolling operation of the vehicle according to the calculated mass. 2. The method of claim 1, wherein the step of controlling comprises controlling at least one of a four wheel drive control system, transmission control system, stability control system, and a brakes system according to the calculated mass. 3. The method of claim 1 further comprising maintaining a constant engine propulsive torque while the speed of the electric machine is changing. 4. The method of claim 1 further comprising disconnecting an engine of the vehicle such that the engine provides no propulsive torque while the speed of the electric machine is changing. 5. The method of claim 1 further comprising tracking a distance traveled by the vehicle and a number of tire revolutions of the vehicle for the distance traveled and comparing the distance traveled and the number of tire revolutions to stored data corresponding to a number of tire revolutions for the distance traveled at a given mass of the vehicle, wherein controlling operation of the vehicle according to the calculated mass includes adjusting operation of the vehicle according to the comparison. 6. The method of 5, wherein the stored data further comprises data corresponding to a number of tire revolutions for the distance traveled at a plurality of vehicle masses. 7. The method of claim 5 further comprising detecting a presence of a towed object attached to the vehicle based on at least one of the measured currents and the comparison. 8. The method of claim 7, wherein if no towed object is detected, a correction factor is created for the adjustment of the operation of the vehicle based on the measured currents. 9. A vehicle system comprising: an electric machine configured to provide a propulsive torque to the vehicle; andat least one controller programmed to control operation of the vehicle based on current consumed by the electric machine at different instances of time while the vehicle is accelerating at least in part from the propulsive torque provided by the electric machine. 10. The system of claim 9, wherein the at least one controller is programmed to control at least one of a four wheel drive control system, transmission control system, stability control system, and a brakes system based on current consumed by the electric machine at different instances of time while the vehicle is accelerating. 11. The system of claim 9 further comprising an engine configured to output a constant propulsive torque during and between the different instances of time while the vehicle is accelerating. 12. The system of claim 9 further comprising an engine configured to output no propulsive torque during and between the different instances of time while the vehicle is accelerating. 13. The system of claim 9 further comprising a global positioning system (GPS) in communication with the at least one controller and configured to track a distance traveled by the vehicle and at least one tire speed sensor configured to measure a number of tire revolutions of the vehicle for the distance traveled, wherein the at least one controller is further programmed to compare the distance traveled and the number of tire revolutions to stored data corresponding to a number of tire revolutions for the distance traveled at a given mass of the vehicle and to adjust operation of the vehicle based on the current consumed according to the comparison. 14. The system of claim 13, wherein the stored data further comprises data corresponding to a number of tire revolutions for the distance traveled at a plurality of vehicle masses. 15. The system of claim 9, wherein the at least one controller is further programmed to control operation of the vehicle based on current consumed by the electric machine at two different instances of time while the vehicle is accelerating. 16. The system of claim 9, wherein the at least one controller is further programmed to control operation of the vehicle based on current consumed by the electric machine at four different instances of time while the vehicle is accelerating.

이 특허에 인용된 특허 (29)

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Huh,Kun Soo; Jung,Jong Chul; Hong,Dae Gun; Lim,Sung Hyun, Method of estimating mass for vehicle safety.
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Stursa, Darren F.; Sigmund, Joshua D., Powertrain for a vehcile and system and method for controlling the powertrain.
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Salman,Mutasim A.; Chen,Jyh Shin; Chang,Man Feng, Predictive energy management system for hybrid electric vehicles.
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Zhu G. George ; Taylor Dennis O. ; Bailey Thomas L., Recursive vehicle mass estimation.
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Livshiz, Michael; Chynoweth, Scott J.; Shupe, Todd R.; Kaiser, Jeffrey M.; Whitney, Christopher E.; Jin, Ning, Reserve torque management for engine speed control.
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Whitney, Christopher E.; Jin, Ning; Shupe, Todd R.; Yan, Weixin; Livshiz, Michael; Pochner, Klaus, Speed control in a torque-based system.
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Gaunt,Michael C.; Zebehazy,Thomas C., System and method for determining proper tire inflation pressure based on current vehicle mass conditions.
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Breen Michael T. (Garden City MI), System and method for determining relative vehicle mass.
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Bellinger, Steven M.; Kalill, John F.; Tyler, Brian C., System and method for estimating vehicle mass.
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Lowrey,Larkin Hill; Banet,Matthew J.; Washicko,Paul, Telematics device for vehicles with an interface for multiple peripheral devices.
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Glass, Paul M.; Wohl, Charles M.; Kight, Susan M.; McMullen, Eddie R.; Hammond, Alan L., Travel tracker network system.
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Katou, Michiya, Vehicle load weight detecting apparatus.
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Kisaburo Hayakawa JP; Masataka Osawa JP; Hiroyuki Yoshida JP; Masuji Oshima JP, Vehicle mass calculation device.
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Honeck Brian S. ; Smidstra Colin R., Vehicle non-volatile memory system.
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Jones,Alan Henry, Vehicle occupant response system.
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Giuli, Thomas J., Vehicle statistical measurement game.
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Yamada,Naoki; Ishiguro,Toshiaki; Kato,Hiroaki; Hayakawa,Kisaburo; Osawa,Masataka; Hibino,Ryoichi, Vehicle weight determining device.
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Lightner,Bruce; Lowrey,Larkin Hill; Hunt,Mark, Wireless, internet-based system for transmitting and analyzing GPS data.
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Grabowski Francis M. (Erie PA), Work vehicle having an electric propulsion system with adapted overspeed limit for traction motors.
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