Electric vehicle power management system

Patent metadata

Field	Value
Publication number	US-11180025-B2
Application number	US-201916433297-A
Country	US
Kind code	B2
Filing date	Jun 6, 2019
Priority date	Nov 17, 2005
Publication date	Nov 23, 2021
Grant date	Nov 23, 2021

Abstract

An apparatus comprising an interface, a memory and a processor. The interface may be configured to receive sensor data samples during operation of a vehicle. The memory may be configured to store the sensor data samples over a number of points in time. The processor may be configured to analyze the sensor data samples stored in the memory to detect a pattern. The processor may be configured to manage an application of brakes of the vehicle in response to the pattern.

First claim

The invention claimed is:

1. A method of electric vehicle operation, comprising:
determining a first segment of a vehicle route while one or more users are using a first vehicle to travel the vehicle route;
before the first vehicle has reached the first segment of the vehicle route, determining a second segment of the vehicle route, the second segment located further from the first vehicle than the first segment, wherein each of the segments comprises a determined length;
determining information about an external environment of the first vehicle, including proximity of a second vehicle,
using the determined information to calculate one or more speeds over the segments of the vehicle route, with distance between the first vehicle and the second vehicle being adjusted;
using a power management system of the first vehicle, applying one or more calculated electric powers to an engine of the first vehicle to travel along the segments of the vehicle route at the one or more calculated speeds, while maintaining the first vehicle at a determined distance with respect to the second vehicle; and
the power management system determining a future destination using historical data associated with the one or more users, wherein the future destination is a destination at which the first vehicle will be parked and turned off, wherein one of the one or more users is a driver, and wherein the future destination is determined at least in part using an identity of the driver that is one of inferred by the power management system and input by the driver.

2. The method of claim 1 , wherein each of the segments has a separate calculated speed and selected drive train parameters, and wherein the segments are determined using route segmentation logic based at least in part on one of historical information of the first vehicle traveling the vehicle route and historical information of one or more other vehicles traveling the vehicle route.

3. The method of claim 1 , wherein the step of determining information about an external environment of a vehicle further comprises the step of communicating with a remote database, and wherein the information about the external environment is selected from the group consisting of: an elevation of the first vehicle, upcoming elevations of the first vehicle, a location of a stoplight, a timing of a stoplight, a present angle of the sun, a predicted angle of the sun for an upcoming segment of the vehicle route, a predicted wind direction for an upcoming segment of the vehicle route, a predicted wind velocity for an upcoming segment of the vehicle route, a predicted temperature for an upcoming segment of the vehicle route, and a predicted air pressure for an upcoming segment of the vehicle route.

4. The method of claim 1 , wherein distance with respect to the vehicle in proximity is maintained at a distance set to avoid collision.

5. The method of claim 1 , wherein the one or more calculated speeds are based at least in part on one or more determined probable optimal speeds using historical route information, and wherein the one or more determined probable optimal speeds are configured for maximum energy efficiency, within one or more constraints, of the first vehicle on the vehicle route.

6. The method of claim 1 , wherein the one or more calculated speeds are based at least in part on iteratively simulated speeds.

7. An electric vehicle, comprising:
a first vehicle having an electric power source, a communication system, and a user interface system configured to receive input from one or more users of the first vehicle; and
a power management system for the electric power source able to determine information about an external environment of the first vehicle, including proximity of a second vehicle, with the power management system set to calculate one or more speeds over a plurality of segments of a vehicle route with distance between the first vehicle and the second vehicle being adjusted, and acting to apply one or more calculated electric powers to the first vehicle to travel along the segments of the vehicle route at the one or more calculated speeds;
wherein the one or more calculated speeds are configured to maximize energy efficiency of the first vehicle, within one or more constraints, while traveling on the vehicle route; and
wherein the vehicle route is set based on a future destination determined by the power management system based at least in part using historical data associated with the one or more users, wherein the future destination is a destination at which the first vehicle will be parked and turned off, wherein one of the one or more users is a driver, and wherein the future destination is determined at least in part using an identity of the driver that is one of inferred by the power management system and input by the driver.

8. The apparatus of claim 7 , wherein each of the segments has a separate calculated speed, and wherein the segments are determined using route segmentation logic based at least in part on one of historical information of the first vehicle traveling the vehicle route and historical information of one or more other vehicles traveling the vehicle route.

9. An electric vehicle, comprising:
a first vehicle having an electric power source, a communication system, and a user interface system configured to receive input from one or more users of the first vehicle; and
a power management system for the electric power source able to determine information about an external environment of the first vehicle, including proximity of a second vehicle, with the power management system set to calculate one or more speeds over a plurality of segments of a vehicle route with distance between the first vehicle and the second vehicle being adjusted, and acting to apply one or more calculated electric powers to the first vehicle to travel along the segments of the vehicle route at the one or more calculated speeds;
wherein the one or more calculated speeds are configured to maximize energy efficiency of the first vehicle, within one or more constraints, while traveling on the vehicle route; and
wherein determining information about the external environment of the first vehicle further comprises communicating with a remote database using the communication system, and wherein the information about the external environment includes: an elevation of the first vehicle, upcoming elevations of the first vehicle, a current grade of the vehicle route, a predicted grade of an upcoming segment of the vehicle route, traffic information, a location of a stoplight, a timing of a stoplight, a present angle of the sun, a predicted angle of the sun for an upcoming segment of the vehicle route, a present wind direction, a predicted wind direction for an upcoming segment of the vehicle route, a present wind velocity, a predicted wind velocity for an upcoming segment of the vehicle route, a current temperature, a predicted temperature for an upcoming segment of the vehicle route, a current air pressure, a predicted air pressure for an upcoming segment of the vehicle route, a time of day, a date, a day of a week, and a visibility.

10. The apparatus of claim 7 , wherein distance with respect to the vehicle in proximity is maintained at a distance set to avoid collision.

11. The apparatus of claim 7 , wherein the one or more calculated speeds are based at least in part on one or more determined probable optimal speeds using historical route information, and wherein the one or more determined probable optimal speeds are configured for maximum energy efficiency, within one or more constraints, of the first vehicle on the vehicle route.

12. The apparatus of claim 7 , wherein

Assignees

• Invently Automotive Inc

Inventors

• Koebler Martin
• Goldstein Nicole G
• Brown Stephen J
• Harper Jason H

Classifications

• B60L58/12 Primary

  responding to state of charge [SoC] · CPC title

• B60K35/22

  Display screens · CPC title

• B60K35/10

  Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor · CPC title

• B60K35/85

  Arrangements for transferring vehicle- or driver-related data · CPC title

• B60K35/28

  characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver · CPC title