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Hybrid vehicle and method of controlling transmission

A technology for hybrid vehicles and transmissions, which can be used in hybrid vehicles, transmission control, motor vehicles, etc., and can solve problems such as energy consumption and slip loss.

Active Publication Date: 2022-06-24
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] In the above case, slip loss etc. occurs during shift preparation, for example, although shifting is not required in normal parallel type hybrid vehicles, shift intervention and shifting also occur
Therefore, energy is consumed inefficiently

Method used

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  • Hybrid vehicle and method of controlling transmission
  • Hybrid vehicle and method of controlling transmission
  • Hybrid vehicle and method of controlling transmission

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Embodiment Construction

[0046] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The features of this invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the embodiments of the present invention in the drawings, parts irrelevant to the description are omitted, and like parts are denoted by like reference numerals throughout the specification.

[0047] Throughout the specification, when a component is referred to as "comprising" an element, unless expressly stated otherwise, this means that the component may also include other elements. In addition, throughout the specification, components denoted by the same reference numerals denote the same components.

[0048] Aspects of the present invention provide a system and method for controlling shift operation in a hybrid vehicle having a...

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PUM

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Abstract

The present invention provides a hybrid vehicle and a transmission control method thereof, more specifically, discloses a transmission control method capable of predicting a driver's demand torque to reduce unnecessary transmission and improve fuel efficiency, and also discloses A hybrid vehicle for implementing the method. In one aspect of the present invention, a method of controlling a transmission of a parallel hybrid vehicle may include: determining a first torque, the first torque being a current demand torque; determining a second torque, the second torque being expected after a current time The demand torque generated at the recent time; when the first torque is greater than or equal to the first threshold, the second torque is compared with the second threshold set according to the recent time; and according to the comparison result, when the second torque is greater than or equal to At the second threshold, a downshift is performed.

Description

[0001] This application claims priority to Korean Patent Application No. 10-2016-0145293 filed on Nov. 2, 2016, which is incorporated herein by reference as if fully set forth herein. technical field [0002] The present invention relates to a hybrid vehicle and a method of controlling its transmission, and more particularly, to a method of controlling a transmission capable of predicting a driver's required torque to reduce unnecessary shifting and improve fuel efficiency, and to a A hybrid vehicle for implementing the method. Background technique [0003] An automatic transmission, which is a type of transmission used in automobiles or motorcycles, can automatically change gear ratios according to the speed of the vehicle or the revolutions per minute (RPM) of the engine. Generally, the transmission operates under the control of a transmission control unit (TCU), and a transmission having a plurality of fixed gear ratios in an automatic transmission is called a stepped tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/30B60W40/04B60W40/09B60W50/00
CPCB60W20/30B60W40/04B60W40/09B60W50/00B60W50/0097B60W2540/30B60W2050/0028B60W2552/05B60W2554/804B60W2555/60B60W2554/801B60Y2200/92F16H61/0213Y10S903/93Y10S903/945B60W20/12B60W2710/1005B60W2540/10B60W2520/10B60W30/1882B60W2050/0088B60W10/06B60W10/08B60W10/10B60W2556/50Y02T10/84Y02T10/40B60W50/10B60W20/00B60W40/105B60W2540/12B60W2510/0657B60W2510/083B60Y2200/91B60W10/11B60W2510/1005B60W2710/083
Inventor 朴俊泳
Owner HYUNDAI MOTOR CO LTD