Adaptive motor torque adjustment for electric two-wheeled vehicles
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62M-006/45
B60L-011/00
B60L-015/20
B60L-015/30
출원번호
US-0909194
(2014-06-06)
등록번호
US-10144485
(2018-12-04)
우선권정보
DE-10 2013 215 287 (2013-08-02)
국제출원번호
PCT/EP2014/061780
(2014-06-06)
국제공개번호
WO2015/014519
(2015-02-05)
발명자
/ 주소
Stegmaier, Juergen
출원인 / 주소
ROBERT BOSCH GMBH
대리인 / 주소
Norton Rose Fulbright US LLP
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
A method for adjusting a motor torque of an electric two-wheeled vehicle, including the following steps: reading in a driver assistance profile which represents a dependency of the motor torque on a pedaling action of the driver, determining at least one predefined range in the driver assistance pro
A method for adjusting a motor torque of an electric two-wheeled vehicle, including the following steps: reading in a driver assistance profile which represents a dependency of the motor torque on a pedaling action of the driver, determining at least one predefined range in the driver assistance profile, the range having at least one nonconstant change within the driver assistance profile, in particular in the slope of the driver assistance profile, and ascertaining a future speed of the electric two-wheeled vehicle as a function of an instantaneous speed of the electric two-wheel vehicle and a pedaling action of the driver. The motor torque is changed, in particular decreased or increased, as a function of the pedaling action of the driver, deviating from the driver assistance profile, based on a check as to whether the future speed of the electric two-wheeled vehicle is within the predefined range.
대표청구항▼
1. A method for adjusting a motor torque of a motor of an electric two-wheeled vehicle, the method comprising: reading in a driver assistance profile which defines respective values of motor torque to be output in response to respective current vehicle speed values that each corresponds to a respect
1. A method for adjusting a motor torque of a motor of an electric two-wheeled vehicle, the method comprising: reading in a driver assistance profile which defines respective values of motor torque to be output in response to respective current vehicle speed values that each corresponds to a respective pedaling action of the driver;ascertaining a value of a future speed of the electric two-wheeled vehicle as a function of an instantaneous speed of the electric two-wheel vehicle and a current pedaling action of the driver;checking whether the ascertained value of the future speed falls within or is out of a predefined range of a vehicle speed value in the driver assistance profile at which vehicle speed value the driver assistance profile defines a change in a rate at which the values of the motor torque of the driver assistance profile change per change of the vehicle speed values of the driver of the driver assistance profile; andresponsive to a result of the checking being that the ascertained value of the future speed falls within the predefined range of vehicle speed values, when the pedaling action of the driver corresponds to one of the vehicle speed values for which the driver assistance profile defines a first one of the values of the motor torque, controlling the motor to instead operate with a motor torque value that is different than the first one of the values of the motor torque defined by the driver assistance profile and that is selected based on the pedaling action of the driver. 2. The method of claim 1, wherein a lower and an upper limiting value are determined for the predefined range, the limiting values being determined at +/−5 km/h, +/−4 km/h, +/−3 km/h, +/−2 km/h, or +/−1 km/h around the vehicle speed value at which there is the change in the rate at which the values of the motor torque change per change of the vehicle speed values. 3. The method of claim 2, wherein the controlling includes changing the motor torque linearly between the lower and the upper limiting values of the predefined range, in deviation from a change defined by the driver assistance profile. 4. The method of claim 1, wherein the controlling includes changing the motor torque in a manner that deviates from that specified in the driver assistance profile immediately beginning at the moment when the future speed of the electric two-wheeled vehicle is determined to be in the predefined range. 5. The method of claim 1, wherein the controlling includes deviating a setting of the motor torque from that specified by the driver assistance profile upon reaching a vehicle speed value that exceeds a lower limiting value of the predefined range. 6. The method of claim 1, wherein the controlling includes deviating a setting of the motor torque from that specified by the driver assistance profile upon an instantaneous vehicle speed falling below an upper limiting value of the predefined range. 7. The method of claim 1, wherein the current pedaling action of the driver as a function of which the value of the future speed is ascertained is a pedaling action that accelerates the vehicle, and the motor torque value, with which the motor is controlled to operate instead of the first one of the values of the motor torque defined by the driver assistance profile, is less than the first one of the values of the motor torque defined by the driver assistance profile. 8. A system for adjusting a motor torque of a motor of an electric two-wheeled vehicle, including a control unit to read in a driver assistance profile which defines respective values of motor torque to be output in response to respective current vehicle speed values that each corresponds to a respective pedaling action of the driver;a second detecting arrangement to detect an instantaneous speed of the electric two-wheeled vehicle;wherein the control unit is configured to: ascertain a value of a future speed of the electric two-wheeled vehicle as a function of the instantaneous speed of the electric two-wheeled vehicle and a current pedaling action of the driver;check whether the ascertained value of the future speed falls within or is out of a predefined range of a vehicle speed value in the driver assistance profile at which speed value the driver assistance profile defines a change in a rate at which the values of the motor torque of the driver assistance profile change per change of the vehicle speed values of the driver assistance profile; andresponsive to a result of the check being that the ascertained value of the future speed falls within the predefined range of vehicle speed values, when the pedaling action of the driver corresponds to one of the vehicle speed values for which the driver assistance profile defines a first one of the values of the motor torque, control the motor to instead operate with a motor torque value that is different than the first one of the values of the motor torque defined by the driver assistance profile. 9. The system of claim 8, wherein the control unit determines lower and the upper limiting values of the predefined range as a function of the vehicle speed value at which there is the change in the rate at which the values of the motor torque change per change of the vehicle speed values. 10. The system of claim 9, wherein the control includes changing the motor torque linearly between the lower and the upper limiting values of the predefined range, in deviation from a change defined by the driver assistance profile. 11. The system of claim 8, wherein the control includes changing the motor torque in a manner that deviates from that specified in the driver assistance profile immediately beginning at the moment when the future speed of the electric two-wheeled vehicle is determined to be in the predefined range. 12. The system of claim 8, wherein the control includes deviating a setting of the motor torque from that specified by the driver assistance profile upon reaching a vehicle speed value that exceeds a lower limiting value of the predefined range. 13. The system of claim 8, wherein the control includes deviating a setting of the motor torque from that specified by the driver assistance profile upon an instantaneous vehicle speed falling below an upper limiting value of the predefined range. 14. The system of claim 8, wherein the control unit includes a microcontroller. 15. The system of claim 8, wherein the current pedaling action of the driver as a function of which the value of the future speed is ascertained is a pedaling action that accelerates the vehicle, and the motor torque value, with which the motor is controlled to operate instead of the first one of the values of the motor torque defined by the driver assistance profile, is less than the first one of the values of the motor torque defined by the driver assistance profile. 16. A method for adjusting a motor torque of a motor of an electric two-wheeled vehicle, the method comprising: reading in, by control unit, a driver assistance profile that defines respective motor torque values to be output in response to respective current values of speed, wherein the profile defines an inflection point at which a slope, representing a rate at which the motor torque values of the driver assistance profile change per change of the speed values of the drive assistance profile, changes, wherein the inflection point is at a particular one of the speed values defined by the driver assistance profile;determining, by the control unit, a value of a future speed based on sensor values including a value of an instantaneous speed;checking, by the control unit, whether the determined future speed is within or is out of a predefined range of the particular speed value of the inflection point of the profile;responsive to a result of the checking being that the determined future speed is within the predefined range of the speed value of the inflection point of the profile, modifying, by the control unit, the respective motor torque value of the profile for one or more of the speed values of the profile; andcontrolling, by the control unit, the motor torque based on the modified torque value of the profile. 17. The method of claim 16, wherein the determining of the value of the future speed is further based on a driver pedaling action accelerate the vehicle, and the modification of the respective motor torque value of the profile for the one or more of the speed values of the profile is a decrease of the respective motor torque value of the profile for the one or more of the speed values of the profile.
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이 특허에 인용된 특허 (1)
Buchanan W. Darrell ; MacCready Paul, Electrical power assist apparatus for a wheeled vehicle.
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