Systems and methods for detecting and controlling a fluid consumption detection warning

Patent metadata

Field	Value
Publication number	US-11312345-B2
Application number	US-202016747981-A
Country	US
Kind code	B2
Filing date	Jan 21, 2020
Priority date	Jan 21, 2020
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

Systems and methods for providing vehicle condition indicators are provided. The method for controlling the vehicle includes receiving sensor information from a plurality of sensors associated with the vehicle. The sensor information includes throttle values and lateral acceleration values. The method also includes analyzing the throttle values for a plurality of points in time to determine whether to activate an aggressive throttle flag. The method further includes analyzing the lateral acceleration values for the plurality of points in time to determine whether to activate an aggressive lateral acceleration flag. In addition, the method includes activating a fluid consumption detection enable flag when the aggressive throttle flag and the aggressive lateral acceleration flag are both active.

First claim

What is claimed is:

1. A system for providing vehicle condition indicators, the system comprising a controller including at least one processor in communication with at least one memory, the at least one processor programmed to:
receive sensor information from a plurality of sensors associated with a vehicle, wherein the sensor information includes throttle values and lateral acceleration values;
analyze the throttle values for a plurality of points in time to determine whether to activate an aggressive throttle flag;
analyze the lateral acceleration values for the plurality of points in time to determine whether to activate an aggressive lateral acceleration flag;
activate a fluid consumption detection enable flag when the aggressive throttle flag and the aggressive lateral acceleration flag are both active;
determine a master cylinder stroke required to reach a set pressure;
compare a master cylinder stroke required to reach a set pressure to a predetermined threshold; and
activate a fluid consumption detection warning based on the comparison and the fluid consumption detection enable flag.

2. The system in accordance with claim 1 , wherein the at least one processor is further programmed to:
for each of the plurality of points in time, compare the throttle value to a throttle threshold; and
adjust a throttle counter based on the comparison.

3. The system in accordance with claim 2 , wherein the at least one processor is further programmed to:
increase the throttle counter by a first amount when the throttle value exceeds the throttle threshold; and
decrease the throttle counter by a second amount when the throttle value does not exceed the throttle threshold, wherein the first amount and the second amount are different.

4. The system in accordance with claim 2 , wherein the at least one processor is further programmed to:
compare the throttle counter to a first threshold;
activate the aggressive throttle flag when the throttle counter exceeds the first threshold; and
deactivate the aggressive throttle flag when the throttle counter does not exceed the first threshold.

5. The system in accordance with claim 1 , wherein the at least one processor is further programmed to:
for each of the plurality of points in time, compare the lateral acceleration value to a lateral acceleration threshold; and
adjust a lateral acceleration counter based on the comparison.

6. The system in accordance with claim 5 , wherein the at least one processor is further programmed to:
increase the lateral acceleration counter by a first amount when the lateral acceleration value exceeds the lateral acceleration threshold; and
decrease the lateral acceleration counter by a second amount when the lateral acceleration value does not exceed the lateral acceleration threshold, wherein the first amount and the second amount are different.

7. The system in accordance with claim 5 , wherein the at least one processor is further programmed to:
compare the lateral acceleration counter to a first threshold;
activate the aggressive lateral acceleration flag when the lateral acceleration counter exceeds the first threshold; and
deactivate the aggressive lateral acceleration flag when the lateral acceleration counter does not exceed the first threshold.

8. The system in accordance with claim 1 , wherein the at least one processor is further programmed to detect abnormal brake fluid consumption.

9. The system in accordance with claim 8 , wherein the at least one processor is further programmed to activate a fluid consumption detection indicator when abnormal brake fluid consumption is detected and the fluid consumption detection enable flag is activated.

10. The system in accordance with claim 9 , wherein the at least one processor is programmed to not activate the fluid consumption detection indicator unless the fluid consumption detection enable flag is activated.

11. The system in accordance with claim 1 , wherein the at least one processor is further programmed to instruct at least one of a display device and an instrument panel of the vehicle to display a warning indicator to a driver of the vehicle when fluid consumption detection enable flag is active.

12. The system in accordance with claim 11 , wherein the warning indicator includes at least one of a light, an icon, and a text message.

13. The system in accordance with claim 1 , wherein the at least one processor is further programmed to deactivate the fluid consumption detection enable flag when at least one of the aggressive throttle flag and the aggressive lateral acceleration flag are deactivated.

14. The system in accordance with claim 1 , further comprising an acceleration pedal sensor for detecting throttle values and at least one acceleration sensor for detecting lateral acceleration values.

15. A method for providing vehicle condition indicators, the method implemented by a vehicle controller comprising at least one processor in communication with at least one memory, the method comprises:
receiving sensor information from a plurality of sensors associated with a vehicle, wherein the sensor information includes throttle values and lateral acceleration values;
analyzing the throttle values for a plurality of points in time to determine whether to activate an aggressive throttle flag;
analyzing the lateral acceleration values for the plurality of points in time to determine whether to activate an aggressive lateral acceleration flag;
activating a fluid consumption detection enable flag when the aggressive throttle flag and the aggressive lateral acceleration flag are both active;
determining a master cylinder stroke required to reach a set pressure;
comparing a master cylinder stroke required to reach a set pressure to a predetermined threshold; and
activating a fluid consumption detection warning based on the comparison and the fluid consumption detection enable flag.

16. The method in accordance with claim 15 further comprising detecting abnormal brake fluid consumption.

17. The method in accordance with claim 16 further comprising activating a fluid consumption detection indicator when abnormal brake fluid consumption is detected and the fluid consumption detection enable flag is activated.

18. The method in accordance with claim 17 further comprising not activating the fluid consumption detection indicator unless the fluid consumption detection enable flag is activated.

19. The method in accordance with claim 15 further comprising deactivating the fluid consumption detection enable flag when at least one of the aggressive throttle flag and the aggressive lateral acceleration flag are deactivated.

20. A vehicle controller including at least one processor in communication with at least one memory, the at least one processor programmed to:
receive, at a plurality of points in time, a current throttle value and a current lateral acceleration value;
for each of the plurality of points in time, compare the current throttle value to a throttle threshold;
adjust a throttle counter based on the comparison;
compare the throttle counter to a first threshold;
activate an aggressive throttle flag when the throttle counter exceeds the first threshold;
for each of the plurality of points in time, compare the current lateral acceleration value to a lateral acceleration threshold;
adjust a lateral acceleration counter based on the comparison;
compare the lateral acceleration counter to a second threshold;
activate an aggressive lateral acceleration

Assignees

• Honda Motor Co Ltd

Inventors

• Boehm Kevin K
• Bartlett David J
• Dyar Lorne R
• Honjo Fumiaki

Classifications

• B60T8/4072 Primary

  Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking · CPC title

• B60T8/58 Primary

  responsive to speed and another condition or to plural speed conditions · CPC title

• B60T7/18

  operated by wayside apparatus · CPC title

• B60T7/042

  by electrical means, e.g. using travel or force sensors · CPC title

• F15B2211/715

  having braking means · CPC title