HYBRID VEHICLE AND PARAMETER DISPLAY METHOD FOR HYBRID VEHICLE

• US 20110295456A1
• Filed: 09/11/2009
• Published: 12/01/2011
• Est. Priority Date: 09/11/2009
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Yamamoto, Masaya, Nomura, Koji, Torii, Takeshi, Gotoda, Yujin
• Granted Patent: US 9,254,757 B2
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60K 2360/174 Economic driving
• CPC Class Codes: B60K 35/28 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 Class Codes: B60K 6/445 Differential gearing distribution type
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• CPC Class Codes: B60L 58/21 having the same nominal voltage
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: B60W 2050/146 Display means
• CPC Class Codes: B60W 2710/0677 Engine power
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration

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.

Claims

1. 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 and which runs using at least one of driving forces including a driving force of said engine and a driving force of said electric motor, comprising:

a control unit that determines a parameter of said hybrid vehicle in accordance with a driver'"'"'s operation, controls said hybrid vehicle in accordance with said parameter in a first mode when a state of charge of said power storage device is equal to or smaller than a threshold value, and controls said hybrid vehicle in accordance with said parameter in a second mode when a state of charge of said power storage device is greater than the threshold value; and

a display unit displays said parameter, wherein

in said first mode, said control unit controls such that said engine is stopped when said parameter is smaller than a predetermined first value and such that said engine is driven when said parameter is equal to or greater than said first value,

in said second mode, said control unit controls such that said engine is stopped when said parameter is smaller than a second value greater than said first value and such that said engine is driven when said parameter is equal to or greater than said second value, and

said display unit

displays said parameter together with a third value greater than said first value when said hybrid vehicle is controlled in said first mode, and

displays said parameter together with said second value in place of said third value when said hybrid vehicle is controlled in said second mode.

3. The hybrid vehicle according to claim 1, wherein

said display unit displays said parameter while displaying said third value using an indication at a predetermined location when said hybrid vehicle is controlled in said first 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 second mode.

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

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

2. (canceled)

6. 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 and which runs using at least one of driving forces including a driving force of said engine and a driving force of said electric motor, comprising:

the steps of;

determining a parameter of said hybrid vehicle in accordance with a driver'"'"'s operation, controlling said hybrid vehicle in accordance with said parameter in a first mode when a state of charge of said power storage device is equal to or smaller than a threshold value, and controlling said hybrid vehicle in accordance with said parameter in a second mode when a state of charge of said power storage device is greater than the threshold value; and

displaying said parameter,

said step of controlling said hybrid vehicle including the steps of;

in said first mode, controlling such that said engine is stopped when said parameter is smaller than a predetermined first value and such that said engine is driven when said parameter is equal to or greater than said first value; and

in said second mode, controlling such that said engine is stopped when said parameter is smaller than a second value greater than said first value and such that said engine is driven when said parameter is equal to or greater than said second value,

said step of displaying said parameter including the steps of

displaying said parameter together with a third value greater than said first value when said hybrid vehicle is controlled in said first mode, and

displaying said parameter together with said second value in place of said third value when said hybrid vehicle is controlled in said second mode.