Title:
BRAKING TORQUE GENERATOR FOR ELECTRIC VEHICLE, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/255431
Kind Code:
A1
Abstract:
The present invention provides a braking torque generator for an electric vehicle and an electric vehicle with which high braking torque can be efficiently generated without definitively requiring a flow regulator that is synchronized with the reciprocating sliding of a piston within a cylinder portion. An electric vehicle (100) comprises a braking torque generator (200) that imparts braking torque to front wheel axles (102a), (102b), which are rotatably driven by an electric motor (107). The braking torque generator (200) is provided with a compression/expansion machine (210), an airtightness degree regulator (220), and a clutch device (222). The compression/expansion machine (210) is provided with a piston (214) that slides in a reciprocating manner within a cylinder block (212) to increase or reduce the capacity of an air chamber (216). An intake/exhaust cylinder communication channel (213) is formed in a cylinder portion (212a) of the cylinder block (212). A piston communication channel (215) is formed in the piston (214) in a position where this channel will communicate with the intake/exhaust cylinder communication channel (213) while communicating with the air chamber (216).
Inventors:
SHIBAYAMA TAKASHI (JP)
Application Number:
PCT/JP2019/037030
Publication Date:
December 24, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
SHIN NIPPON TOKKI CO LTD (JP)
International Classes:
B60T17/00; B60T7/12; B60T13/36; F16D57/00
Foreign References:
| JPH0157684B2 | 1989-12-07 | |||
| JPS54123714A | 1979-09-26 | |||
| JPS4113913B1 | ||||
| JPS51107545U | 1976-08-27 | |||
| JPS49141406U | 1974-12-05 |
Attorney, Agent or Firm:
ITO Hiroyuki (JP)
Download PDF: