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EP0987139A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Control device for a hybrid vehicle

Assignee: Honda Motor Co Ltd
•
Filing: 1999-09-01
•
Granted: —
•
Expires: 2019-09-01
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Abstract

Abstract A control device for a hybrid vehicle powered from an engine and an assist motor for supplying electric power in an amount predetermined according to running conditions of the vehicle further includes means for detecting a catalyzer temperature and correcting the predetermined assist power value according to the detected catalyzer temperature when accelerating and means for preventing the idling engine from being cut off when detected catalyzer temperature is lower than a preset temperature. This control device thus realizes rapid heating of the catalyzer device to a temperature necessary for activating the catalyzer therein by adequately correcting the assist power value of the motor according to the current catalyzer temperature when accelerating and by preventing the idling engine from being cut off while the catalyzer device has a low temperature.

Inventors

  • 👤 Fumihiko Konno
  • 👤 Shigetaka Kuroda
  • 👤 Youichi Iwata
  • 👤 Asao Ukai
  • 👤 Takashi Kiyomiya
  • 👤 Kenji Nakano
  • 👤 Atsushi Matsubara
  • 👤 Yasuo Nakamoto

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 06:23
CPC Classifications
B; B60; B60W; B60W20/00; B60W20/10; B60K; B60K6/00; B60K6/20; B60K6/22; B60K6/24; B60K6/42; B60K6/48; B60K6/485; B60K6/50; B60K6/54; B60K6/547; B60L; B60L50/00; B60L50/10; B60L50/15; B60W10/00; B60W10/04; B60W10/06; B60W10/08; B60W2510/00; B60W2510/06; B60W2510/068; B60Y; B60Y2300/00; B60Y2300/47; B60Y2300/474; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/7072; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/905; Y10S903/915; Y10S903/917; Y10S903/919

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 80 words
A control device for a hybrid vehicle powered by an engine and an assist motor, which controls acceleration of the vehicle using the assist motor for helping the engine by supplying electric power in an amount predetermined according to current running conditions, and which further includes means for detecting a current temperature of a catalyzer device for cleaning exhaust gases from the engine and means for correcting the predetermined assist-power amount according to a detected temperature of the catalyzer device.
Claim 2
Dependent Claim 34 words
A control device as defined in claim 1, characterized in that the assist power amount is corrected in such a way that the assist power amount becomes smaller as a catalyzer temperature becomes lower.
Claim 3
Dependent Claim 41 words
A control device as defined in claim 1, characterized in that it includes means for detecting a temperature of the engine and prevents the assist motor from assisting the engine when a detected engine-temperature is not higher than a specified temperature.
Claim 4
Dependent Claim 54 words
A control device as defined in claim 1, characterized in that the device is provided with means for detecting the vehicle in an idling state and cutting off the engine but prohibits the means from cutting off the engine when a concurrently detected temperature of the catalyzer is not higher than a specified temperature.

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