Hybrid vehicle

Patent metadata

Field	Value
Publication number	US-2018201115-A1
Application number	US-201615745812-A
Country	US
Kind code	A1
Filing date	Jul 18, 2016
Priority date	Jul 20, 2015
Publication date	Jul 19, 2018
Grant date	—

Abstract

A hybrid vehicle, including first and second drive motors, an axle driven by the first and/or second drive motor, a mechanical transmission connecting the axle to the first and second drive motors. The transmission includes a planetary gear train having two reduction ratios between the second drive motor and the axle, and including a switching mechanism imposing each of the reduction ratios. The switching mechanism includes a first mechanism configured to rigidly connect and disconnect two components of the planetary gear train, and a second mechanism configured to halt and release a third component of the planetary gear train, the second mechanism is located on a portion of the transmission located between the planetary gear train and the first drive motor, the portion of the transmission is another planetary gear train, and the second mechanism is a coupling having two coupling states, including a state of blocking the other train.

First claim

1 - 9 . (canceled)

10 . A hybrid vehicle, comprising:
a first prime mover; a second prime mover; an axle driven by the first prime mover and/or the second prime mover; a mechanical transmission connecting the axle to the first prime mover and to the second prime mover, the transmission comprising a planetary gearset with two speed reducing ratios between the second prime mover and the axle, the planetary gearset comprising a switching mechanism to impose each of the speed reducing ratios, wherein the switching mechanism is divided in two and comprises a first mechanism configured to secure and unsecure two components of the planetary gearset, and a second mechanism configured to stop and release a third component of the planetary gearset, the second mechanism is located on a part of the transmission located between the planetary gearset and the first prime mover, the part of the transmission is another planetary gearset, wherein the second mechanism is a coupling with two coupling states, including a state of blocking the other gearset.

11 . The hybrid vehicle according to claim 10 , wherein the third component of the planetary gearset is also one of the two components.

12 . The hybrid vehicle according to claim 11 , wherein the third component of the planetary gearset is a ring gear of the gearset.

13 . The hybrid vehicle according to claim 11 , wherein both components of the planetary gearset include a sun gear of the planetary gearset.

14 . The hybrid vehicle according to claim 11 , wherein both components of the planetary gearset include a ring gear of the gearset.

15 . The hybrid vehicle according to claim 11 , wherein the first mechanism is a clutch.

16 . The hybrid vehicle according to claim 11 , wherein both coupling states of the second mechanism also comprise a state of securing both components of the transmission, including at least one component of the other planetary gearset.

17 . The hybrid vehicle according to claim 11 , wherein the state of blocking the other gearset stops rotation of the two components of the transmission.

18 . The hybrid vehicle according to claim 11 , wherein the first prime mover is a thermal engine, the second prime mover is an electric motor, the planetary gearset is driven both by the other planetary gearset and the second prime mover, and the other planetary gearset is driven by the first prime mover.

19 . The hybrid vehicle according to claim 10 , wherein the third component of the planetary gearset is a ring gear of the gearset.

20 . The hybrid vehicle according to claim 10 , wherein both components of the planetary gearset include a sun gear of the planetary gearset.

21 . The hybrid vehicle according to claim 10 , wherein both components of the planetary gearset include a ring gear of the gearset.

22 . The hybrid vehicle according to claim 10 , wherein the first mechanism is a clutch.

23 . The hybrid vehicle according to claim 10 , wherein both coupling states of the second mechanism also comprise a state of securing both components of the transmission, including at least one component of the other planetary gearset.

24 . The hybrid vehicle according to claim 10 , wherein the state of blocking the other gearset stops rotation of the two components of the transmission.

25 . The hybrid vehicle according to claim 10 , wherein the first prime mover is a thermal engine, the second prime mover is an electric motor, the planetary gearset is driven both by the other planetary gearset and the second prime mover, and the other planetary gearset is driven by the first prime mover.

Assignees

• Ifp Energies Now

Inventors

• Venturi Stephane

Classifications

• F16H3/725

  with means to change ratio in the mechanical gearing · CPC title

• B60K6/387

  Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means · CPC title

• B60K6/48

  Parallel type · CPC title

• B60K2006/381

  characterized by driveline brakes · CPC title

• B60K2006/4841

  the gear provides shifting between multiple ratios · CPC title