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Method and device for vehicle driving assistance

A technology for vehicles and drivers, applied in transmission, transmission control, gear transmission, etc., can solve problems such as expensive large computing devices and complex systems

Active Publication Date: 2013-04-03
RENAULT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Such a system, which takes into account the multitude of information with combined effects, is complex and thus requires large and expensive computing devices

Method used

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  • Method and device for vehicle driving assistance
  • Method and device for vehicle driving assistance
  • Method and device for vehicle driving assistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] figure 1 The torque / speed map for is an example of a shift schedule map that indicates when the driver should upshift or downshift to downshift under acceleration, depending on the vehicle speed, such as when going uphill or entering When braking before a curve.

[0043] For example, from point A1 onwards, at which point A is in third gear and which corresponds to vehicle speed V1, at C1 the accelerator pedal is depressed to control the vehicle speed to gradually increase, and for a constant pedal position, at point A2 shifts at speed V2 to fourth gear, then up to fifth gear at speed V3 at point A3.

[0044] If the vehicle is decelerating, for example, on a slope without action on the accelerator pedal, it is necessary to shift from fifth gear back to fourth at point A4 at speed V4 and then from fourth back to third at point A5 at speed V5 .

[0045] Likewise, starting from point B corresponding to vehicle speed V' and accelerator pedal position C', in order to maint...

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PUM

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Abstract

The device has a controlling unit with a logical controller with an inhibition module (8), anti-pumping module (9), freezing module (10), a fast off module (11) and an antichaining and anticipation module (12) that are disposed in serial, such that each module provides correction to a value of a recommended ratio. The correction provided by the module is prioritized based on the correction performed by the preceding module in a privileging order for assisting safely. A cartography of law of traveling speed is intergraded inside the controller. An independent claim is also included for a method for assisting a steering of a powertrain of a motor vehicle.

Description

technical field [0001] The object of the invention is a method and a device for the control of a propulsion unit of an auxiliary vehicle having a manual gearbox or a semi-automatic gearbox capable of manual operation. Background technique [0002] A motor vehicle is propelled by a propulsion unit that includes a drive motor, a clutch, and a gearbox that permits a transmission ratio between the output shaft of the motor and the drive wheels according to the speed of the vehicle and the Torque requirements vary. [0003] The gearbox can be controlled manually by the driver or alternatively automatically, taking the decision to shift gears by giving due consideration to different indicators and at least at the relevant moment the speed of the vehicle and the load on the engine. [0004] In the case of automatic transmissions, these indicators take the form of shift rules, which can be used with figure 1 In the figure, the axis of abscissa represents the speed of the vehicle a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/16F16H63/42
CPCF16H2061/0015F16H61/0213F16H2063/426F16H63/42Y02T10/76F16H2061/022F16H1/16A24D1/002A24D3/061A24D3/10A24D3/048
Inventor P·阿贝尔E·维热里
Owner RENAULT SA