Electric-powered vehicle and controlling method thereof

• US 20090242288A1
• Filed: 08/30/2006
• Published: 10/01/2009
• Est. Priority Date: 09/01/2005
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Oyobe, Hichirosai, Nakamura, Makoto
• Application Number:
  US11/990,837
• Publication Number:
  US 20090242288A1
• Time in Patent Office: Days
• US Class Current: 180/65.265
• CPC Class Codes: B60L 15/007 Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
• CPC Class Codes: B60L 2210/20 AC to AC converters
• CPC Class Codes: B60L 2220/14 Synchronous machines
• CPC Class Codes: B60L 2220/54 Windings for different functions
• 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 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/22 Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/24 Using the vehicle's propulsion converter for charging
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60W 10/24 including control of energy storage means
• 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 20/13 in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
• CPC Class Codes: B60W 2050/146 Display means
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• 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 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles

Abstract

When a control apparatus determines, based on a signal, that an ignition key has been turned to the OFF position, the control apparatus outputs to an actuator an operation command of an informing apparatus based on the SOC of a main battery. The informing apparatus is disposed at a location where it can easily be seen by the driver when the driver has exited from the vehicle, and driven by the actuator. The informing apparatus changes its projection amount from the external surface of the vehicle or an angle relative to the external surface of the vehicle based on the SOC of the main battery.

Claims

1. An electric-powered vehicle, comprising:

an electric power storage apparatus capable of being charged and discharged;

a rotating electric machine receiving electric power from said electric power storage apparatus to generate driving force for allowing the vehicle to travel;

an internal combustion engine;

an electric power generation apparatus configured to be capable of converting kinetic energy generated by said internal combustion engine into electric energy and charging said electric power storage apparatus;

information means provided at an exterior of a vehicular room for informing a user in outside of the vehicle about necessity of charging said electric power storage apparatus; and

control means for outputting an operation command to said information means based on a state of charge of said electric power storage apparatus, when a system of the vehicle is stopped.

3. The electric-powered vehicle according to claim 1, wherein

said information means is configured to change its position in accordance with said operation command from said control means, and

said control means outputs to said information means the operation command that varies in accordance with the state of charge of said electric power storage apparatus.

4. The electric-powered vehicle according to claim 1, wherein

when the state of charge of said electric power storage apparatus becomes not greater than a prescribed value, said control means outputs to said information means the operation command that is different than when the state of charge of said electric power storage apparatus is greater than said prescribed value, and

said information means informs said vehicle user by an information pattern that is different between when the state of charge of said electric power storage apparatus is not greater than said prescribed value and when it is greater than said prescribed value, based on the operation command from said control means.

5. The electric-powered vehicle according to claim 1, wherein

said control means outputs said operation command to said information means, when the state of charge of said electric power storage apparatus becomes not greater than a prescribed value.

6. The electric-powered vehicle according to claim 1, further comprising

vehicle position detection means for detecting whether or not said electric-powered vehicle is parked at a location where charging equipment is installed, wherein

said control means outputs said operation command to said information means, when said vehicle position detection means detects that the electric-powered vehicle is parked at the location where said charging equipment is installed.

7. The electric-powered vehicle according to claim 1, wherein

said control means outputs said operation command to said information means based on the state of charge of said electric power storage apparatus and a remaining amount of fuel of said internal combustion engine.

8. The electric-powered vehicle according to claim 7, wherein

said information means is configured to change its position in accordance with said operation command from said control means, and

said control means outputs to said information means an operation command that varies in accordance with the state of charge of said electric power storage apparatus and the remaining amount of said fuel.

9. The electric-powered vehicle according to claim 7, wherein

when the state of charge of said electric power storage apparatus becomes not greater than a first prescribed value and the remaining amount of said fuel becomes not greater than a second prescribed value, said control means outputs to said information means the operation command that is different than when at least one of the state of charge of said electric power storage apparatus and the remaining amount of said fuel is greater than the respective corresponding first and second prescribed values, and

said information means informs said vehicle user by an information pattern that is different between when the state of charge of said electric power storage apparatus is not greater than said first prescribed value with the remaining amount of said fuel being not greater than said second prescribed value, and when at least one of the state of charge of said electric power storage apparatus and the remaining amount of said fuel is greater than the respective corresponding first and second prescribed values, based on the operation command from said control means.

10. The electric-powered vehicle according to claim 7, wherein

said control means outputs said operation command to said information means, when the state of charge of said electric power storage apparatus becomes not greater than a third prescribed value and the remaining amount of said fuel becomes not greater than a fourth prescribed value.

11. The electric-powered vehicle according to claim 7, further comprising

vehicle position detection means for detecting whether or not said electric-powered vehicle is parked at a location where charging equipment is installed, wherein

said control means outputs said operation command to said information means, if the remaining amount of said fuel is not greater than a fifth prescribed value when said vehicle position detection means detects that the electric-powered vehicle is parked at the location where said charging equipment is installed.

12. The electric-powered vehicle according to claim 7, wherein

said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,

said electric-powered vehicle further comprising:

first and second inverters provided respectively corresponding to said rotating electric machine and said additional rotating electric machine;

inverter control means for controlling said first and second inverters; and

an electric power input portion that receives electric power provided from a source in outside of the vehicle for charging said electric power storage apparatus, wherein

said rotating electric machine and said additional rotating electric machine respectively include first and second three-phase coils as stator coils,

said electric power input portion includes

a first terminal connected to a neutral point of said first three-phase coil, and

a second terminal connected to a neutral point of said second three-phase coil, and wherein

said inverter control means controls said first and second inverters so that AC power provided across said first and second terminals is converted into DC power and provided to said electric power storage apparatus.

2. An electric-powered vehicle, comprising:

an electric power storage apparatus capable of being charged and discharged;

a rotating electric machine receiving electric power from said electric power storage apparatus to generate driving force for allowing the vehicle to travel;

an internal combustion engine;

an electric power generation apparatus configured to be capable of converting kinetic energy generated by said internal combustion engine into electric energy and charging said electric power storage apparatus;

information means provided at an exterior of a vehicular room;

exit determination means for determining whether or not a driver has exited from inside of the vehicle to outside of the vehicle; and

control means for outputting an operation command to said information means based on a state of charge of said electric power storage apparatus, when a system of the vehicle is stopped and said exit determination means determines that the driver has exited from the vehicle.

15. The electric-powered vehicle according to claim 2, wherein

said information means is configured to change its position in accordance with said operation command from said control means, and

said control means outputs to said information means the operation command that varies in accordance with the state of charge of said electric power storage apparatus.

16. The electric-powered vehicle according to claim 2, wherein

when the state of charge of said electric power storage apparatus becomes not greater than a prescribed value, said control means outputs to said information means the operation command that is different than when the state of charge of said electric power storage apparatus is greater than said prescribed value, and

said information means informs said vehicle user by an information pattern that is different between when the state of charge of said electric power storage apparatus is not greater than said prescribed value and when it is greater than said prescribed value, based on the operation command from said control means.

17. The electric-powered vehicle according to claim 2, wherein

said control means outputs said operation command to said information means, when the state of charge of said electric power storage apparatus becomes not greater than a prescribed value.

18. The electric-powered vehicle according to claim 2, further comprising

vehicle position detection means for detecting whether or not said electric-powered vehicle is parked at a location where charging equipment is installed, wherein

said control means outputs said operation command to said information means, when said vehicle position detection means detects that the electric-powered vehicle is parked at the location where said charging equipment is installed.

19. The electric-powered vehicle according to claim 2, wherein

said control means outputs said operation command to said information means based on the state of charge of said electric power storage apparatus and a remaining amount of fuel of said internal combustion engine.

13. A method of controlling an electric-powered vehicle, said electric-powered vehicle including:

an electric power storage apparatus capable of being charged and discharged;

a rotating electric machine receiving electric power from said electric power storage apparatus to generate driving force for allowing the vehicle to travel;

an internal combustion engine;

an electric power generation apparatus configured to be capable of converting kinetic energy generated by said internal combustion engine into electric energy and charging said electric power storage apparatus; and

an information portion provided at an exterior of a vehicular room for informing a user in outside of the vehicle about necessity of charging said electric power storage apparatus, said method comprising;

a first step of determining whether or not a system of said vehicle is stopped; and

a second step of outputting an operation command to said information portion based on a state of charge of said electric power storage apparatus, when it is determined that said system is stopped.

14. A method of controlling an electric-powered vehicle, said electric-powered vehicle including:

an electric power storage apparatus capable of being charged and discharged;

a rotating electric machine receiving with electric power from said electric power storage apparatus to generate driving force for allowing the vehicle to travel;

an internal combustion engine;

an electric power generation apparatus configured to be capable of converting kinetic energy generated by said internal combustion engine into electric energy and charging said electric power storage apparatus; and

an information portion provided at an exterior of a vehicular room, the method comprising;

a first step of determining whether or not a system of said vehicle is stopped;

a second step of determining whether or not a driver has exited from inside of the vehicle to outside of the vehicle; and

a third step of outputting an operation command to said information portion based on a state of charge of said electric power storage apparatus, when it is determined that said system is stopped and that the driver has exited from the vehicle.