DRIVING DEVICE FOR HYBRID VEHICLE

• US 20130288854A1
• Filed: 02/03/2012
• Published: 10/31/2013
• Est. Priority Date: 02/08/2011
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kobayashi, Atsushi
• Granted Patent: US 9,481,355 B2
• Time in Patent Office: Days
• US Class Current: 477/5
• CPC Class Codes: B60K 6/36 characterised by the transmission gearings
• CPC Class Codes: B60K 6/442 Series-parallel switching type
• CPC Class Codes: B60K 6/547 the transmission being a stepped gearing
• 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 2240/421 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 2270/145 Structure borne vibrations
• 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: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 30/20 Reducing vibrations in the driveline
• CPC Class Codes: B60Y 2300/58 Engine torque vibration dampers, e.g. flywheels, dual-mass-springs
• CPC Class Codes: B60Y 2400/48 Vibration dampers, e.g. dual mass flywheels
• 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 903/902 : Prime movers comprising electrical and internal combustion motors

Abstract

A driving device for hybrid vehicle, having an engine, a first motor capable of generating electric power by driving force of the engine, a second motor capable of supplying driving force to drive wheels, a first driving force transmission path for transmitting driving force of the engine to the drive wheels, a second driving force transmission path for transmitting driving force between the first motor and the engine, and a third driving force transmission path for transmitting driving force of the second motor to the drive wheels, includes a second damper capable of absorbing torque fluctuations in the second driving force transmission path and a third damper capable of absorbing torque fluctuations in the third driving force transmission path, in addition to a first damper capable of absorbing torque fluctuations in the first driving force transmission path.

Claims

1-6. -6. (canceled)

7. a driving device for hybrid vehicle having an engine and a motor comprising:

a first driving force transmission path that transmits driving force of the engine to drive wheels of vehicle;

a second driving force transmission path that transmits driving force between the motor and the engine;

a first torque fluctuation absorbing mechanism that can absorb torque fluctuations on the first driving force transmission path;

and a second torque fluctuation absorbing mechanism that can absorb torque fluctuations on the second driving force transmission path;

wherein the driving force is transmitted via both the first torque fluctuation absorbing mechanism and the second torque fluctuation absorbing mechanism when transmitting driving force of the motor to the engine in the second driving force transmission path at a time of starting the engine;

and the driving force is transmitted via the first torque fluctuation absorbing mechanism, out of the first torque fluctuation absorbing mechanism and the second torque fluctuation absorbing mechanism, when transmitting driving force of the engine to the drive wheels in the first driving force transmission path while a vehicle is running.

9. A driving device for hybrid vehicle that has an engine, a first motor that can generate power by driving force of the engine, and a second motor that can supply driving force to drive wheels of vehicle, comprising:

a first driving force transmission path that transmits driving force of the engine to the drive wheels;

a second driving force transmission path that transmits driving force between the first motor and the engine;

a third driving force transmission path that transmits driving force of the second motor to the drive wheels;

a first torque fluctuation absorbing mechanism that can absorb torque fluctuations on the first driving force transmission path;

a second torque fluctuation absorbing mechanism that can absorb torque fluctuations on the second driving force transmission path;

and a third torque fluctuation absorbing mechanism that can absorb torque fluctuations in the third driving force transmission path;

wherein, when transmitting the driving force of the first motor to the engine in the second driving force transmission path at a time of starting the engine, the driving force is transmitted via the first torque fluctuation absorbing mechanism and the second torque fluctuation absorbing mechanism, out of the first to third torque fluctuation absorbing mechanisms;

when transmitting driving force of the engine to the drive wheels in the first driving force transmission path while a vehicle is running, the driving force is transmitted via the first torque fluctuation absorbing mechanism, out of the first to third torque fluctuation absorbing mechanisms;

and when transmitting driving force of the second motor to the drive wheels in the third driving force transmission path while a vehicle is running, the driving force is transmitted via the third torque fluctuation absorbing mechanism, out of the first to third torque fluctuation absorbing mechanisms.