Vehicle that switches between displaying fuel efficiency on a display device and displaying electricity efficiency on the display device based on engine use history when a selected running mode is a charge depleting mode

• US 9,855,958 B2
• Filed: 03/16/2016
• Issued: 01/02/2018
• Est. Priority Date: 03/19/2015
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ichikawa, Shinji, Izuno, Naoya, Matsuoka, Hiroyuki
• Primary Examiner(s): GOLDMAN, RICHARD A
• Application Number:
  US15/071,932
• Publication Number:
  US 20160272220A1
• Time in Patent Office: 657 Days
• Field of Search: 701 22, 701423, 701438, 701455, 340439, 340438, 340455
• 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: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• 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 50/082 Selecting or switching between different modes of propelling
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: B60Y 2200/92 Hybrid vehicles
• CPC Class Codes: B60Y 2400/92 Driver displays
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration
• CPC Class Codes: Y02T 10/92 Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
• CPC Class Codes: Y10S 903/93 Conjoint control of different elements
• CPC Class Codes: Y10S 903/951 Assembly or relative location of components

Abstract

An ECU causes a display device to display fuel efficiency when a recovery mode is selected as an operation mode in which amount-of-stored-power recovery control of making a target value of an amount of charge of a battery higher than in other modes is performed, causes the display device to display fuel efficiency when a CS mode is selected as a running mode in which the amount of charge of the battery is maintained at a prescribed target with an engine operating, and causes switching of display between fuel efficiency and electricity efficiency on the display device based on an indicator of use history of the engine when a CD mode is selected as the running mode in which running using only a motor generator with the engine stopped is given a high priority.

Claims

1. A vehicle comprising:

a display device;

an engine;

a motor;

an externally chargeable battery; and

a control device that controls charge/discharge of the battery, drive of the engine, and drive of the motor, depending on a selected operation mode and a selected running mode,

the control device causing the display device to display a fuel efficiency when the selected operation mode is a recovery mode in which an amount-of-stored-power recovery control is performed to recover an amount of charge of the battery to a target value that is higher than in at least one other mode,

the control device causing the display device to display the fuel efficiency when the selected running mode is a CS (Charge Sustaining) mode in which the amount of charge of the battery is maintained at a prescribed target with the engine operating, and

the control device causing switching between displaying the fuel efficiency on the display device and displaying an electricity efficiency on the display device based on an indicator of use history of the engine when the selected running mode is a CD (Charge Depleting) mode in which running using only the motor with the engine stopped is given a higher priority than in another running mode.

2. The vehicle according to claim 1, wherein

when the selected running mode is the CD mode, the control device causes the electricity efficiency to be displayed when an EV (Electric Vehicle) running ratio exceeds a first threshold value and an activated time of the engine is less than a second threshold value, and causes the fuel efficiency to be displayed when the EV running ratio is less than or equal to the first threshold value and the activated time of the engine is more than or equal to the second threshold value.

3. The vehicle according to claim 2, wherein

the control device changes a first magnitude of the first threshold value and a second magnitude of the second threshold value depending on the selected operation mode.

4. The vehicle according to claim 1, wherein

when the selected running mode is the CD mode, the control device causes the fuel efficiency to be displayed when a combination of an EV running ratio and an activated time of the engine is included in a fuel efficiency display area in a determination map, and causes the electricity efficiency to be displayed when the combination is included in an electricity efficiency display area in the determination map.

5. The vehicle according to claim 4, wherein

the control device changes the determination map depending on the selected operation mode.

6. The vehicle according to claim 1, wherein

selectable operation modes include a power mode and a normal mode.

7. The vehicle according to claim 1, wherein

selectable operation modes include an ECO mode and a normal mode, wherein the ECO mode is a fuel efficiency priority mode.

8. The vehicle according to claim 1, wherein

when causing the electricity efficiency to be displayed, the control device causes an electricity efficiency in the selected operation mode to be displayed.

9. The vehicle according to claim 1, wherein

when causing the electricity efficiency to be displayed, the control device causes an instantaneous electricity efficiency and an average electricity efficiency to be displayed.

10. The vehicle according to claim 1, wherein

when causing the fuel efficiency to be displayed, the control device causes a fuel efficiency in the selected operation mode to be displayed.

11. The vehicle according to claim 1, wherein

when causing the fuel efficiency to be displayed, the control device causes an instantaneous fuel efficiency and an average fuel efficiency to be displayed.

12. A vehicle comprising:

a display device;

an engine;

a motor;

an externally chargeable battery; and

a control device that controls charge/discharge of the battery, drive of the engine, and drive of the motor, depending on a selected running mode,

the control device causing switching between displaying a fuel efficiency on the display device and displaying an electricity efficiency on the display device based on an indicator of use history of the engine when the selected running mode is a CD (Charge Depleting) mode in which running using only the motor with the engine stopped is given a higher priority than in another running mode.