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Method and device for detecting short notice acceleration from rest of a vehicle with a heat engine in order to trigger an acceleration-from-rest-assist strategy

A detection device and vehicle technology, applied in the direction of engine control, machine/engine, control device, etc., can solve the problems of engine speed oscillation, excessive fuel consumption, etc.

Active Publication Date: 2016-05-11
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore the increase in idle speed regulation static setting is usually fully applied before effective starting, which causes excessive fuel consumption
Also, this approach can lead to oscillations in engine speed if the triggering conditions for the launch assist strategy change relatively quickly

Method used

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  • Method and device for detecting short notice acceleration from rest of a vehicle with a heat engine in order to trigger an acceleration-from-rest-assist strategy
  • Method and device for detecting short notice acceleration from rest of a vehicle with a heat engine in order to trigger an acceleration-from-rest-assist strategy

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Embodiment Construction

[0024] The object of the present invention is to propose a detection method, and a detection device D associated therewith, for the detection of a vehicle V having a powertrain comprising an internal combustion engine MT with a crankshaft VL and a transmission BV of manual type called The kick-off type takes place.

[0025] In what follows, it is considered, as a non-limiting example, that said vehicle V is a motor vehicle. This involves, for example, a car. But the invention is not limited to this type of vehicle. The invention relates in fact to all vehicles comprising a powertrain for providing torque on its crankshaft, for example for rotating the wheels or propellers. Thus, the invention relates in particular to ground vehicles (automobiles, motorcycles, utility vehicles, passenger cars (or buses), trucks, road construction machines, construction machines, handling machines, trains), river or sea vehicles, and aircraft.

[0026] Furthermore, it is considered hereinafte...

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Abstract

The invention relates to a device (D) which is intended for detecting "short notice" acceleration from rest of a vehicle (V) with a power train including a crankshaft (VL), in order to trigger an acceleration-from-rest-assist strategy intended for increasing the set speed of a speed-limiting governor of said vehicle (V). Said device (D) is arranged such as to detect short notice acceleration from rest in the event of the detection of: the clutch pedal being pressed, the brake pedal not being pressed, a vehicle speed (V) of substantially zero, and the transmission of at least one selected torque to the crankshaft (VL).

Description

technical field [0001] The invention relates to a vehicle, of the type that may be a motor vehicle, comprising an internal combustion engine powertrain (or GMP) and a computer responsible for implementing the management strategy for the torque couple provided by the powertrain and for the idling process of the internal combustion engine. Background technique [0002] As is known to those skilled in the art, when a vehicle of the type described above (eg, a motor vehicle) begins to accelerate early in the starting process, the closure of the clutch causes at least a portion of the torque provided by the crankshaft coupled to the internal combustion engine to be transmitted to the wheels. This transmission by harvesting torque can make it difficult to maintain the engine speed given by the device responsible for idle speed regulation, which can cause the internal combustion engine to stall when starting. [0003] In order to minimize the occurrence of stalling at start-up, it ...

Claims

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Application Information

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IPC IPC(8): B60W10/06B60W30/18B60W30/188F02D31/00
CPCB60W30/1884B60W10/06B60W30/18018B60W30/18027B60W2510/0657B60W2510/0661B60W2520/04B60W2520/10B60W2540/10B60W2540/12B60W2540/14B60W2710/0644B60W2710/065F02D31/003F02D2200/101F02D2200/501F02D2200/602
Inventor 亚历克西斯·马尔犀利阮明
Owner PEZHO SITROEN AUTOMOBILS SA
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