Engine system, operating method therefor, and engine starting apparatus

• US 20030094317A1
• Filed: 11/18/2002
• Published: 05/22/2003
• Est. Priority Date: 11/22/2001
• Status: Active Grant

• Current Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Inventors: Fukushima, Tatsuya, Takizawa, Kazuaki, Minami, Katsuya, Tachikawa, Junya, Shimabukuro, Eijiro, Fujioka, Masato, Ooyama, Kazuo
• Granted Patent: US 6,845,832 B2
• Time in Patent Office: Days
• US Class Current: 180/53.8
• CPC Class Codes: B60K 6/365 with the gears having orbital motion
• CPC Class Codes: B60K 6/383 One-way clutches or freewheel devices
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/441 Speed
• CPC Class Codes: B60L 2240/443 Torque
• CPC Class Codes: B60L 2260/22 Standstill, e.g. zero speed
• CPC Class Codes: B60L 2260/26 Transition between different drive modes
• CPC Class Codes: B60L 3/0023 Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: F02B 33/34 with rotary pumps with cell-type pressure exchangers or the like F02B33/42
• CPC Class Codes: F02N 11/003 said electric motor being also used as a drive for auxiliaries, e.g. for driving transmission pumps or fuel pumps during engine stop
• CPC Class Codes: F02N 15/046 of the planetary type
• CPC Class Codes: F16H 3/724 : using external powered electric machines
• 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: Y10S 903/91 : Orbital, e.g. planetary gears
• CPC Class Codes: Y10S 903/913 : One way
• CPC Class Codes: Y10S 903/918 : Continuously variable

Abstract

The present invention is made to operate auxiliary machine while an engine is stopped, to start an engine and to charge a battery by providing a single motor and a simple construction and by providing a simple control operation. An engine system comprises an engine, a motor, and auxiliary machine, and further comprises a planetary mechanism having three elements comprising a sun gear, a carrier and a ring gear, to which any one of an output shaft of the engine, an output shaft of the motor and a drive shaft of the auxiliary machine are respectively connected, a uniting connection device capable of uniting two or more elements of the planetary mechanism, and a rotation direction restriction device which restricts a rotation direction of the drive shaft of the auxiliary machine to one direction.

Claims

1. An engine system comprising an engine, a motor, and auxiliary machine, and further comprising:

a planetary mechanism having three elements comprising a sun gear, a carrier and a ring gear, to which any one of an engine output shaft, a motor output shaft and an auxiliary machine drive shaft are respectively connected;

a uniting connection device capable of uniting two or more elements of said planetary mechanism; and

a rotation direction restriction device which restricts a rotation direction of said auxiliary machine drive shaft to one direction.

2. An engine system according to claim 1, wherein said rotation direction restriction device is a one-way clutch.

3. An engine system according to claim 1 or claim 2, comprising a rotation direction restriction device, which restricts a rotation direction of said engine output shaft to one direction.

4. An engine system according to claim 3, wherein said rotation direction restriction device is a one-way clutch.

5. An engine system according to claim 1, wherein said auxiliary machine is a compressor of an air conditioner.

6. An engine system according to any one of claim 1, wherein

said engine output shaft is connected to said carrier,

said motor output shaft is connected to said sun gear, and

said auxiliary machine drive shaft is connected to said ring gear.

7. An engine system according to claim 6, wherein said carrier is provided with a pinion gear which is engaged with said sun gear and said ring gear, and

said pinion gear and said sun gear are formed in approximately the same diameter.

8. An engine system according to claim 1, wherein the engine system further comprises an auxiliary machine connection device capable of connecting and disconnecting said auxiliary machine to said planetary mechanism, and

while the engine is in operation and when a uniting connection device capable of uniting two or more elements of said planetary mechanism loses the capability of connection, the auxiliary machine and the planetary mechanism are connected by said auxiliary machine connection device.

9. An engine system according to claim 1, wherein said uniting connection device is electrically operated, and the uniting connection device is disconnected when the device is an energized state and is connected when the device is in the other condition than the energized state.

10. An operating method for an engine system comprising a planetary mechanism comprised of three elements including a sun gear, a carrier and a ring gear, which are respectively connected to any one of an engine output shaft, a motor output shaft and an auxiliary machine drive shaft, wherein the operating method comprises the steps of:

starting the engine by rotating the output shaft of the motor in one direction while maintaining said auxiliary machine output shaft at a stationary state;

driving the auxiliary machine by the motor by rotating said motor output shaft in an opposite direction while maintaining said engine output shaft at a stationary state; and

driving the auxiliary machine by the engine by uniting two or more elements of said planetary mechanism.

11. A starting apparatus for an engine comprising:

a planetary mechanism having three elements comprising a sun gear, a carrier and a ring gear, two optional elements of which are connected to an engine output shaft and an auxiliary machine drive shaft respectively;

a motor connected to the remaining one element of said planetary mechanism;

a uniting connection device capable of uniting two or more elements of said planetary mechanism; and

a rotation direction restriction device capable of restricting rotation directions of elements connected to said auxiliary machine drive shaft to one direction.