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System and method for reducing wear during build-up of engine torque

A technology of engine torque and engine, applied in the direction of engine control, machine/engine, motor vehicle, etc., can solve troublesome and complicated problems, parts wear and other problems, and achieve the effect of avoiding serious wear

Inactive Publication Date: 2014-12-10
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For unfamiliar drivers, these solutions can be cumbersome and complex, and even with reduced risk of engine stalling, there are still problems associated with unacceptable component wear in the vehicle's drive train

Method used

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  • System and method for reducing wear during build-up of engine torque
  • System and method for reducing wear during build-up of engine torque
  • System and method for reducing wear during build-up of engine torque

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] figure 1 A side view of vehicle 100 is depicted. The vehicle illustrated here includes a tractor unit 110 and a trailer 112 . Vehicle 100 may be a heavy vehicle such as a truck or a bus. Alternatively, vehicle 100 may be a car.

[0056] The term "link" refers herein to a communication link, which may be a physical connection such as an optoelectronic communication line, or may be a non-physical connection such as a wireless connection, eg a radio link or a microwave link.

[0057] figure 2 Subsystems 299 of the vehicle 100 are depicted. The subsystems are located in the tractor unit 110 .

[0058] Subsystem 299 includes a first control unit 200, which may include a reference Figure 5 The device described in more detail.

[0059] Subsystem 299 includes engine 230 which may be an internal combustion engine. Engine 230 may be a diesel engine with a suitable number of cylinders.

[0060] The engine 230 is adapted to deliver generated torque to a clutch structure ...

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PUM

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Abstract

The invention relates to a method for wear-limiting torque build-up in a vehicle (100; 110) provided with an engine (230), clutch configuration (235) and gearbox (240), comprising the steps of - demanding (s410) a power train torque, and - guiding (s420) the torque build-up towards the power train torque demanded (Tqreq). The method comprises also the steps of - responding to continuing torque build-up at a certain engine speed (Es) by only providing a reduced power train torque (Tqlimit) which is less than a maximum available engine torque (Tqmax), - continuously deciding (s450) whether the vehicle is moving or not, - further increasing the power train torque (Tq) by increasing the engine's speed (Es) if the prevailing power train torque (Tq) is substantially the same as the reduced power train torque (Tqlimit) and the vehicle (100) is not moving, - automatically activating (s460) said clutch configuration (235) to non- slipping operation.

Description

technical field [0001] The present invention relates to a method for wear limiting torque build-up in a vehicle. The invention also relates to a computer program product comprising program code for use in a computer for implementing the method according to the invention. The invention also relates to a device for wear-limiting torque build-up in a vehicle and a motor vehicle equipped with said device. Background technique [0002] For example, certain vehicles used in factory operations or in mining or quarrying may be loaded and unloaded with cargo at frequent intervals. In this case, sharp changes in running resistance often occur. If the moving-off procedure is not robust enough to handle large changes in running resistance, the clutches in the driveline of the vehicle may experience significant wear when launching the vehicle from standstill. Alternatively, a situation may arise where the vehicle cannot accelerate. For a vehicle's control system to be robust enough t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/08B60W10/02B60W10/06B60W30/18
CPCB60Y2200/147B60W2710/0666F16D48/08B60W10/06B60W2710/025B60W30/186B60W2710/0644B60W2510/0638B60W10/02B60W2510/0657B60W30/18027F16D2500/10412F16D2500/3065F16D2500/3067F16D2500/3108F16D2500/3111F16D2500/50296F16D2500/70235F16D2500/70276F16D2500/7041F16D2500/70426F16D48/06F16D2500/50224F02D2250/26B60W10/04
Inventor K·雷德布兰特M·沃格贝里
Owner SCANIA CV AB