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Vehicle power transmission system

A power transmission and vehicle technology, applied to bicycles, motorcycles, automatic control, etc., can solve the problems of operator discomfort, long torque loss time, time-consuming, etc., and achieve the effect of reducing discomfort

Active Publication Date: 2014-03-26
FCC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the power transmission device described in the above-mentioned Patent Document 1, after the clutch is disengaged, the speed change operation of the speed change device is performed, that is, the gear sets constituting the shift speed need to perform a shifting step, so the speed change operation takes time. At the same time, since the driving force from the engine is not transmitted to the driving wheels, the torque drop takes a long time, causing discomfort to the operator.

Method used

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Embodiment Construction

[0032] Hereinafter, an embodiment of the power transmission system for a vehicle according to the present invention will be described with reference to the drawings. figure 1 It is a block diagram schematically showing the overall schematic configuration of the vehicle power transmission system 100 of the present invention. In addition, in the drawings referred to in this specification, in order to facilitate the understanding of the present invention, some of the constituent elements are shown schematically in exaggerated expressions. Therefore, the dimensions or ratios among the various components may be different. This vehicle power transmission system 100 is a group of mechanical devices that transmit the rotational driving force generated by the engine as the prime mover to the driving wheels in a motorcycle (so-called motorcycle), and is installed in the motorcycle The periphery of the engine (for example, under the seat cushion or fuel tank).

[0033] (Configuration of Po...

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Abstract

Provided is a vehicle power transmission system which quickly performs shift operations in the transmission and is capable of alleviating the operator's discomfort due to torque loss. This vehicle power transmission system (100) is provided with an engine (110) the operation of which is controlled by an ECU (300), a clutch (210) and a transmission (240). The clutch (210) and transmission (240) begin operation by driving rotation of a shift spindle (230) coupled with clutch drive play (L1) and shift operation play (L2, L3). After the drive force transmitted to the transmission has been reduced by delay in ignition timing in the engine (110) and the start of lifting up of the clutch (210), shift operations involve a step of cutting fuel supplied in the engine (110) and disconnecting the gear in the transmission (240). This gear disconnecting step is completed before the drive force is substantially interrupted in the clutch (210).

Description

Technical field [0001] The invention relates to a vehicle power transmission system mounted on a self-propelled vehicle such as an automatic two-wheeled vehicle or a four-wheeled off-road vehicle. Background technique [0002] Traditionally, a self-propelled vehicle such as a two-wheeled motor vehicle or a four-wheeled off-road vehicle is equipped with a power transmission device in order to transmit the driving force generated by the engine (primary mover) to the driving wheels. The power transmission device is a mechanical device that connects and disconnects the rotating drive shaft (crankshaft) of the engine while changing the number of revolutions of the rotating drive shaft and transmits it to the drive wheels. It is mainly composed of a clutch and a transmission device. Here, the so-called clutch is a mechanical device that transmits the rotational drive force of the rotational drive shaft to the transmission side while connecting and disconnecting the rotational drive sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/02F02P5/15F02D29/02
CPCF16H61/0437F02D41/023B60W10/06F16H61/02F02D37/02F02P5/1504F16H61/682F02D29/02F02D29/00Y02T10/46F16D48/02B60W10/04B60Y2200/12B60W10/02F16H63/502B60W30/18Y02T10/40
Inventor 牧田昇司宫地一好
Owner FCC KK
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