ELECTRIC-POWER SUPPLY SYSTEM, AND VEHICLE

• US 20140330468A1
• Filed: 07/17/2014
• Published: 11/06/2014
• Est. Priority Date: 11/30/2004
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: OYOBE, Hichirosai, ISHIKAWA, Tetsuhiro, MINEZAWA, Yukihiro, SATO, Hitoshi
• Application Number:
  US14/334,296
• Publication Number:
  US 20140330468A1
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60L 1/00 Supplying electric power to auxiliary equipment of vehicles circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60L 2210/20 AC to AC converters
• CPC Class Codes: B60L 50/10 using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 3/08 Synchronising of networks
• CPC Class Codes: H02J 3/322 the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 9/062 for AC powered loads
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y10S 903/903 having energy storing means, e.g. battery, capacitor

Abstract

A vehicle is capable of supplying electric power to an electric load external to the vehicle. The vehicle includes an electric-power generation device generating the electric power, a first connection terminal for electrically connecting the vehicle to another first vehicle to output the electric power generated by the electric-power generation device via the other first vehicle to the electric load, a second connection terminal for connecting another second vehicle to the vehicle to electrically connect the other second vehicle with the vehicle in parallel with respect to the electric load, and a system controller operating the electric-power generation device based on an electric power command received from the other first vehicle.

Claims

1. A vehicle capable of supplying electric power to an electric load external to the vehicle, the vehicle comprising:

an electric-power generation device generating the electric power;

a first connection terminal for electrically connecting the vehicle to another first vehicle to output the electric power generated by the electric-power generation device via the other first vehicle to the electric load;

a second connection terminal for connecting another second vehicle to the vehicle to electrically connect the other second vehicle with the vehicle in parallel with respect to the electric load; and

a system controller operating the electric-power generation device based on an electric power command received from the other first vehicle.

2. The vehicle according to claim 1, wherein the system controller receives a synchronization signal for synchronizing first AC electric power to be generated by the electric-power generation device to second AC electric power to be output from the other first vehicle connected to the first connection terminal, from the other first vehicle, and controls the electric-power generation device to generate the first AC electric power in synchronization with the received synchronization signal.

3. The vehicle according to claim 1, further comprising an internal combustion engine, wherein the electric-power generation device includes:

a generator coupled to the internal combustion engine and including a first three-phase coil in Y connection as a stator coil;

an electric motor including a second three-phase coil in Y connection as a stator coil;

first and second inverters connected to the generator and the electric motor, respectively, to drive the generator and the electric motor, respectively, using electric power generated using output of the internal combustion engine; and

a controller controlling operation of the first and second inverters, wherein the controller controls the first and second inverters to generate AC electric power to be supplied to the electric load across a neutral point of the first three-phase coil and a neutral point of the second three-phase coil, using the electric power generated using the output of the internal combustion engine.

4. The vehicle according to claim 2, further comprising an internal combustion engine, wherein the electric-power generation device includes:

a generator coupled to the internal combustion engine and including a first three-phase coil in Y connection as a stator coil;

an electric motor including a second three-phase coil in Y connection as a stator coil;

first and second inverters connected to the generator and the electric motor, respectively, to drive the generator and the electric motor, respectively, using electric power generated using output of the internal combustion engine; and

a controller controlling operation of the first and second inverters, wherein the controller controls the first and second inverters to generate AC electric power to be supplied to the electric load across a neutral point of the first three-phase coil and a neutral point of the second three-phase coil, using the electric power generated using the output of the internal combustion engine.