IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0776758
(2010-05-10)
|
등록번호 |
US-8335605
(2012-12-18)
|
발명자
/ 주소 |
- Mueller, Jonas
- Schloen, Oliver
|
출원인 / 주소 |
- Bayerische Motoren Werke Aktiengesellschaft
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
1 |
초록
▼
A method for adjusting a preset desired state of charge of an electric energy accumulator of a vehicle, in particular a hybrid vehicle, while traveling uphill and downhill, determines whether the condition for a vehicle traveling uphill or downhill is met according to a preset decision logic. It als
A method for adjusting a preset desired state of charge of an electric energy accumulator of a vehicle, in particular a hybrid vehicle, while traveling uphill and downhill, determines whether the condition for a vehicle traveling uphill or downhill is met according to a preset decision logic. It also determines whether an actual state of charge of the energy accumulator lies within a preset range of the state of charge, and adjusts the desired state of charge according to a preset adjustment logic, if the condition for a vehicle traveling uphill or downhill is met, and the actual state of charge of the energy accumulator lies within the preset range of the state of charge.
대표청구항
▼
1. A method for adjusting a preset desired state of charge of an electric energy accumulator of a hybrid vehicle, the method comprising the acts of: determining, according to a preset decision logic, whether a condition for a vehicle traveling uphill or downhill is met;determining whether an actual
1. A method for adjusting a preset desired state of charge of an electric energy accumulator of a hybrid vehicle, the method comprising the acts of: determining, according to a preset decision logic, whether a condition for a vehicle traveling uphill or downhill is met;determining whether an actual state of charge of the energy accumulator lies within a preset range of the state of charge; andadjusting the desired state of charge according to a preset adjustment logic, if (i) the condition for the vehicle traveling uphill or downhill is met, and(ii) the actual state of charge of the energy accumulator lies within the preset range of the state of charge,wherein the act of adjusting the desired state of charge comprises the act of decreasing the desired state of charge if the condition for the vehicle traveling uphill is met. 2. The method according to claim 1, wherein the act of adjusting the desired state of charge comprises the act of increasing the desired state of charge if the condition for the vehicle traveling downhill is met. 3. The method according to claim 1, wherein a gradient of the at least one of an increase and a decrease in the desired state of charge is selected in terms of amount to be larger, the greater the downward slope and/or the inclination of a road last traveled by the vehicle. 4. The method according to claim 1, wherein the act of determining whether the condition for the vehicle traveling uphill or downhill is met comprises the act of evaluating by the decision logic at least one of an absolute or relative altitude signal and an inclination signal. 5. The method according to claim 4, wherein the at least one of the absolute or relative altitude signal and the inclination signal is determined by at least one of: measuring the ambient air pressure,evaluating an altitude signal of a navigation system,a drive torque,evaluating a vehicle acceleration, andevaluating an inclination of the vehicle in relation to a horizontal plane. 6. The method according to claim 4, wherein the at least one of the absolute or relative altitude signal and the inclination signal generate: a first signal, which reflects the time-based or distance-based changes in at least one of the altitude and the inclination in no more than a minimally filtered manner;a second signal, which reflects the time-based or distance-based changes in a more filtered manner relative to the first signal; anda detection of the condition for the vehicle traveling uphill and/or downhill if an amount of a difference between the first and second signals exceeds a preset value. 7. The method according to claim 5, wherein the at least one of the absolute or relative altitude signal and the inclination signal generate: a first signal, which reflects the time-based or distance-based changes in at least one of the altitude and the inclination in no more than a minimally filtered manner;a second signal, which reflects the time-based or distance-based changes in a more filtered manner relative to the first signal; anda detection of the condition for the vehicle traveling uphill and/or downhill if an amount of a difference between the first and second signals exceeds a preset value. 8. The method according to claim 6, wherein the desired state of charge is at least one of increased and decreased as a function of said amount of the difference between the first and second signals. 9. The method according to claim 7, wherein the desired state of charge is at least one of increased and decreased as a function of said amount of the difference between the first and second signals. 10. A method for controlling an actual state of charge of an electric energy accumulator of a hybrid vehicle, the method comprising the acts of: presetting a desired state of charge as a reference value;determining the desired state of charge in accordance with the following: determining, according to a preset decision logic, whether a condition for a vehicle traveling uphill or downhill is met;determining whether an actual state of charge of the energy accumulator lies within a preset range of the state of charge; andadjusting the desired state of charge according to a preset adjustment logic, if (i) the condition for the vehicle traveling uphill or downhill is met, and(ii) the actual state of charge of the energy accumulator lies within the preset range of the state of charge,wherein the act of adjusting the desired state of charge comprises the act of decreasing the desired state of charge if the condition for the vehicle traveling uphill is met. 11. The method according to claim 10, wherein the act of adjusting the desired state of charge comprises the act of increasing the desired state of charge if the condition for the vehicle traveling downhill is met. 12. The method according to claim 10, wherein the act of determining whether the condition for the vehicle traveling uphill or downhill is met comprises the act of evaluating by the decision logic at least one of an absolute or relative altitude signal and an inclination signal. 13. The method according to claim 12, wherein the at least one of the absolute or relative altitude signal and the inclination signal is determined by at least one of: measuring the ambient air pressure,evaluating an altitude signal of a navigation system,a drive torque,evaluating a vehicle acceleration, andevaluating an inclination of the vehicle in relation to a horizontal plane. 14. The method according to claim 12, wherein the at least one of the absolute or relative altitude signal and the inclination signal generate: a first signal, which reflects the time-based or distance-based changes in at least one of the altitude and the inclination in no more than a minimally filtered manner;a second signal, which reflects the time-based or distance-based changes in a more filtered manner relative to the first signal; anda detection of the condition for the vehicle traveling uphill and/or downhill if an amount of a difference between the first and second signals exceeds a preset value. 15. The method according to claim 14, wherein the desired state of charge is at least one of increased and decreased as a function of said amount of the difference between the first and second signals.
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