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System and method for controlling traction in a two-wheeled vehicle

A traction and vehicle technology, applied in the field of traction systems, can solve problems such as inability to adapt to instantaneous conditions

Inactive Publication Date: 2010-12-22
PIAGGIO & C SPA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] This control method, which is not based on the adjustment of the instantaneous slip feedback, cannot adapt to the instantaneous conditions of the driving surface and the vehicle (such as the adhesion provided by the road surface or the wear of the tires), so it can only be used in the competition situation (in the competition situation Every maneuver on the route can be planned and described in high detail (manoeuvre)

Method used

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  • System and method for controlling traction in a two-wheeled vehicle
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  • System and method for controlling traction in a two-wheeled vehicle

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Embodiment Construction

[0026] Referring to the drawings, there is shown a system, generally indicated at 100, for controlling traction in a two-wheeled vehicle.

[0027] The system 100 for controlling traction includes a control module 110 coupled to an engine 121 of a two-wheeled vehicle 120 , wherein the engine 121 can be torque-controlled, that is, can provide the instantaneous torque τ requested by the system 100 .

[0028] Specifically, adjustments to the requested torque are typically made by varying the spark advance for each cylinder, or preferably by electronic control of the throttle to enable use of the entire torque range that the engine 121 is capable of producing, or even by a combination of the two methods. get.

[0029] In a vehicle having an engine 121 in which torque can be controlled, a system (not shown) for controlling the engine is contemplated, which converts a user request implemented through an accelerator into a reference torque (τ). This conversion is achieved by means of...

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Abstract

The present invention refers to a system and method for controlling traction in a two-wheeled vehicle (120) comprising a torque controlled motor (121) and a plurality of sensors (122) for instantaneously measuring driving parameters (v,Phi,Theta,Chi,Alpha,,RPM,gear) of said vehicle (120), the method comprising the steps of determining a reference slip value (Lambada 0) as a function of a parameter (Theta) representative of a torque request from a user detected by means of the plurality of sensors (122); estimating an instantaneous slip value (Lambada s); determining a first component (Tau CL) of a requested torque signal to the motor (121) based upon the difference between the reference slip value (Lambada0) and the instantaneous slip value (Lambada s); and is characterised in that the reference slip value (Lambada 0) is determined by means of a torque-slip map correlating the parameter (Theta) representative of a torque request with a slip (Lambada), the map varying as a function of a longitudinal speed (v) and a rolling angle (Phi) of the two-wheeled vehicle (120) detected by means of the plurality of sensors (122).

Description

technical field [0001] The present invention relates to systems and methods for controlling traction in two-wheeled vehicles. Background technique [0002] In a vehicle in general, and in a two-wheeled or motorcycle vehicle in particular, traction is controlled by controlling the slip of the drive wheels during acceleration to ensure good road-holding performance and thereby improve vehicle performance. It is achieved by way of its own safety and driving conditions. In particular, a non-zero level of longitudinal slip is required in order to provide traction in the direction of vehicle motion. [0003] However, having a non-zero longitudinal slip value results in a reduction in the lateral force that the tires can apply when the vehicle has to deal with a turn. This effect is particularly acute in two-wheeled vehicles, where the lateral forces exerted by the tires not only enable the vehicle to complete turns, but also stabilize the roll dynamics. [0004] Thus, in a moto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W40/12B60W30/02
CPCB60W2520/26B60W30/02B60W2710/0666B60K28/16B60Y2200/12B60W30/188
Inventor S·M·萨瓦雷斯M·科诺尔S·福蒙廷L·法布里
Owner PIAGGIO & C SPA
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