Hybrid vehicle and parameter display method for hybrid vehicle

Patent metadata

Field	Value
Publication number	US-9254757-B2
Application number	US-200913147149-A
Country	US
Kind code	B2
Filing date	Sep 11, 2009
Priority date	Sep 11, 2009
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

On a display, a running power determined in accordance with an accelerator position or the like is displayed. When the hybrid vehicle is controlled in a CS mode, the running power is displayed together with eco-acceleration power greater than a first engine starting power. When the hybrid vehicle is controlled in a CD mode, the running power is displayed together with a second engine starting power in place of the eco-acceleration power. The engine is stopped when the running power is smaller than the first engine starting threshold value in the CS mode. The engine is driven when the running power is equal to or greater than the first engine starting threshold value in the CS mode. The engine is stopped when the running power is smaller than a second engine starting threshold value in the CD mode. The engine is driven when the running power is equal to or greater than the second engine starting threshold value in the CD mode. The second engine starting threshold value is greater than the first engine starting threshold value.

First claim

The invention claimed is:

1. A hybrid vehicle, comprising:
an engine,
an electric motor, and
a power storage device that stores electric power to be supplied to said electric motor
a control unit that determines a parameter of said hybrid vehicle in accordance with a driver's operation and switches a control mode between a Charge Depleting mode that does not sustain SOC of said power storage device and a Charge Sustain mode that sustains the SOC; and
a display unit that displays said parameter, wherein
in said Charge Sustain mode, said control unit drives said engine when said parameter is equal to or greater than a first value,
in said Charge Depleting mode, said control unit when said parameter is equal to or greater than a second value that is greater than said first value, and
said display unit displays said parameter in different manners between when said hybrid vehicle is controlled in said Charge Sustain mode and when said hybrid vehicle is controlled in said Charge Depleting mode.

2. The hybrid vehicle according to claim 1 , wherein
said display unit displays said parameter while displaying a third value greater than said first value using an indication at a predetermined location when said hybrid vehicle is controlled in said Charge Sustain mode, and
said display unit displays said parameter while displaying said second value in place of said third value using said indication when said hybrid vehicle is controlled in said Charge Depleting mode.

3. The hybrid vehicle according to claim 1 , further comprising a light portion which turns on when said engine is stopped in said Charge Depleting mode, and which turns off when said engine is driven in said Charge Depleting mode.

4. The hybrid vehicle according to claim 1 , wherein said parameter is power.

5. A parameter display method for a hybrid vehicle which is provided with an engine, an electric motor, and a power storage device that stores electric power to be supplied to said electric motor, comprising the steps of:
determining a parameter of said hybrid vehicle in accordance with a driver's operation, and switching a control mode between a Charge Depleting mode that does not sustain SOC of said power storage device and a Charge Sustain mode that sustains the SOC; and
displaying said parameter, said step of controlling said hybrid vehicle including the steps of:
in said Charge Sustain mode, driving said engine when said parameter is equal to or greater than said first value; and
in said Charge Depleting mode, driving said engine when said parameter is equal to or greater than a second value that is greater than said first value,
said step of displaying said parameter including a step of
displaying said parameter in different manners between when said hybrid vehicle is controlled in said Charge Sustain mode and when said hybrid vehicle is controlled in said Charge Depleting mode.

6. The hybrid vehicle according to claim 1 , wherein
said display unit displays said parameter together with a third value greater than said first value when said hybrid vehicle is controlled in said Charge Sustain mode, and
displays said parameter together with said second value in place of said third value when said hybrid vehicle is controlled in said Charge Depleting mode.

Assignees

• Yamamoto Masaya
• Gotoda Yujin
• Nomura Koji
• Torii Takeshi
• Toyota Motor Co Ltd

Inventors

• Yamamoto Masaya
• Gotoda Yujin
• Nomura Koji
• Torii Takeshi

Classifications

• B60L2250/16

  by display · CPC title

• B60W20/00

  Control systems specially adapted for hybrid vehicles {(hybrid vehicle design, B60K6/00; electric vehicles B60L)} · CPC title

• B60W50/14

  Means for informing the driver, warning the driver or prompting a driver intervention · CPC title

• B60L2210/40

  DC to AC converters · CPC title

• B60K6/445 Primary

  Differential gearing distribution type · CPC title