Hybrid type driving apparatus

• US 6,958,549 B2
• Filed: 04/26/2004
• Issued: 10/25/2005
• Est. Priority Date: 05/16/2003
• Status: Expired due to Fees

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kobayashi, Hiroshi, Kawakami, Toshiaki, Wakitani, Tsutomu
• Primary Examiner(s): Waks, Joseph
• Application Number:
  US10/831,181
• Publication Number:
  US 20040227348A1
• Time in Patent Office: 547 Days
• Field of Search: 290/40.C, 180/65.2, 180/65, 180/65.4
• US Class Current: 290/40.00C
• CPC Class Codes: B60K 2006/268 Electric drive motor starts the engine, i.e. used as starter motor
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60L 50/15 with additional electric power supply with capacitors charged by engine-driven generators B60L50/40; with batteries charged by engine-driven generators B60L50/61
• 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 10/26 for electrical energy, e.g. batteries or capacitors
• 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: B60Y 2200/41 Construction vehicles, e.g. graders, excavators
• 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

Abstract

An engine-driven generator G is concurrently used as a starter motor for an engine E that drives a working machine. A motor 25 for motive-power use is a driving source for the working machine to travel. The driving circuit 10 is commonly used between the starter motor G and the motor 25 for travel use. In a starting mode, with switches 35 and 36, the driving circuit 10 is connected to the starter motor G side to start the engine. After complete explosion of the engine, with the switches 35 and 36, the generator G is connected to a regulator 31, while the driving circuit 10 is connected to the motor 25 for travel use. As a result of this, while a battery 14 is electrically charged, the motor 25 for travel use is driven with the battery 14.

Claims

1. A hybrid type driving apparatus, the hybrid type driving apparatus including a generator that is driven by an engine, a battery that is electrically charged by the generator, a motor for motive-power use, wherein the generator can operate as a starter motor for starting the engine, comprising:

a regulator that regulates the output electric power of the generator to appropriately fit for charging the battery;

a driving circuit that drives the motor for motive-power use and the generator as the starter motor by an output of the battery,

a switching means that only when starting the engine connects the output of the driving circuit to the generator to operate it as the starter motor;

wherein

the switching means is configured so as to disconnect the generator from the driving circuit then connects the generator to the battery via the regulator after start up of the engine, and connects the battery to the motor for motive-power use via the driving circuit that is disconnected from the generator, while the generator that is disconnected from the driving circuit is connected with the battery via the regulator.

2. A hybrid type driving apparatus according to claim 1, wherein

each of the motor for motive-power use and the generator is a brushless type electrodynamic machine that has a magnet rotor and three-phase stator windings;

and

the driving circuit has at least an inverter circuit.

3. A hybrid type driving apparatus according to claim 1, wherein it is constructed in the way that the engine is operated so that it may be maintained at a fixed number of revolutions for a fixed speed to thereby drive a working machine.