Vehicle control device

Patent metadata

Field	Value
Publication number	US-2016114786-A1
Application number	US-201514818957-A
Country	US
Kind code	A1
Filing date	Aug 5, 2015
Priority date	Oct 28, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

When an air density is relatively low and a predicted regeneration zone is present within a predetermined travel distance, a vehicle control device executes at least one of the following: i) prohibition of setting a target value of a remaining battery level to a corrected target value; and ii) prohibition of control of an engine and a motor based on the corrected target value.

First claim

1 . A vehicle control device that controls a vehicle, wherein the vehicle includes an internal combustion engine, which functions as a drive source, a motor, which is capable of regenerating electricity and functions as a drive source, an electricity storage device, which is a drive source of the motor and is configured to be charged by regenerated electricity, wherein
the vehicle control device comprises a predicted regeneration zone determining section circuitry, which is configured to determine whether a predicted regeneration zone, in which regenerative braking is predicted, is present in an advancing direction of a vehicle, the predicted regeneration zone determining section circuitry is configured to determine whether the predicted regeneration zone is present within a predetermined travel distance from a position of the vehicle, the vehicle control device is configured to compare an air density determination value, which is a variable related to an air density, with a threshold value, the vehicle control device is configured such that, when the predicted regeneration zone is not present within the predetermined travel distance, the vehicle control device controls the engine and the motor based on a standard target value of a remaining battery level of the electricity storage device, the vehicle control device is configured such that, when the air density, which is determined based on the air density determination value, is relatively high, and the predicted regeneration zone is present within the predetermined travel distance from the position of the vehicle, the vehicle control device controls the engine and the motor based on a corrected target value of the remaining battery level of the electricity storage device, wherein the corrected target value is lower than the standard target value, and the vehicle control device is configured such that, when the air density, which is determined based on the air density determination value, is relatively low, and the predicted regeneration zone is present within the predetermined travel distance from the position of the vehicle, the vehicle control device executes at least one of the following: i) prohibition of setting the target value of the remaining battery level to the corrected target value; and ii) prohibition of control of the engine and the motor based on the corrected target value.

2 . The vehicle control device according to claim 1 , wherein the vehicle control device is configured such that, when the air density, which is determined based on the air density determination value is relatively low, and the predicted regeneration zone is present within the predetermined travel distance from the position of the vehicle, the vehicle control device sets the target value of the remaining battery level to a value that is greater than the corrected target value and less than the standard target value and controls the engine and the motor based on the target value.

3 . The vehicle control device according to claim 2 , wherein the vehicle control device is configured such that, as the air density, which is determined based on the air density determination value, is lowered, the vehicle control device changes the target value to be increased between the standard target value and the corrected target value.

4 . The vehicle control device according to claim 1 , wherein the vehicle control device is configured to calculate the air density determination value based on a physical quantity, which is includes at least one of an air temperature and an atmospheric pressure.

5 . The vehicle control device according to claim 1 , wherein the vehicle control device is configured to set the target value of the remaining battery level to the standard target value when the vehicle reaches the predicted regeneration zone.

Assignees

• Toyota Motor Co Ltd

Inventors

• Morisaki Keisuke

Classifications

• B60L50/16

  with provision for separate direct mechanical propulsion · CPC title

• B60W10/08

  including control of electric propulsion units, e.g. motors or generators · CPC title

• B60L50/61

  by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles · CPC title

• Y02T90/16

  Information or communication technologies improving the operation of electric vehicles · CPC title

• B60L2240/66

  Ambient conditions · CPC title