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Method to maximize start/stop availability of micro-hybrid vehicles

A technology for automatic stop and power electric vehicles, applied in the direction of engine starting, engine motor starting, engine components, etc., which can solve problems such as no substantial success, unused batteries, and insufficient use

Active Publication Date: 2018-05-01
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the BMM uses a fixed programmed value for starter motor inrush current, there may be inadvertent / unclear situations where some vehicle batteries still have sufficient charge and the stop / start operation may be unused or underutilized
Other attempts to maximize the start / stop operation of a vehicle have so far not been substantially successful

Method used

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  • Method to maximize start/stop availability of micro-hybrid vehicles
  • Method to maximize start/stop availability of micro-hybrid vehicles
  • Method to maximize start/stop availability of micro-hybrid vehicles

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Embodiment Construction

[0012] The following specific examples illustrate various aspects of the claimed invention and methods of practicing it. However, the description is not intended to define and limit the present invention, and such definitions and limitations are only included in the appended claims. Although the best mode for carrying out the invention has been fully disclosed, those skilled in the art will understand that other embodiments of the invention are also possible to implement and practice.

[0013] Micro-hybrid vehicles currently on the automotive market are equipped with a start / stop function for the vehicle's engine, which shuts down the engine when the vehicle comes to a standstill. The engine restarts when the vehicle starts moving again. This minimizes engine idling to reduce vehicle fuel consumption and emissions. When the engine is off, the vehicle's electrical components, including the climate control system, infotainment and lighting systems, etc., begin to draw power fr...

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Abstract

A method of maximizing the availability of start / stop operations in a micro-hybrid vehicle includes measuring current drawn from a vehicle battery by a set of electrical components of the vehicle. The internal resistance of the vehicle battery and the resistance of the starter motor loop circuit coupled to the vehicle engine are dynamically calculated. The closed circuit voltage of the battery is predicted using the internal resistance of the battery, the resistance of the starter motor loop circuit and the current drawn by a set of electrical components of the vehicle. If the closed circuit voltage of the battery is expected to be higher than a preset minimum value, a start / stop operation is performed.

Description

technical field [0001] The present invention relates generally to a motor vehicle, and more particularly to a micro-hybrid vehicle equipped with an automatic start / stop function. Background technique [0002] Micro-hybrid electric vehicles contain a start / stop system that automatically shuts off the vehicle's engine to minimize engine idling when the vehicle is stopped, and turns the engine off when the vehicle resumes moving. Restart. This significantly reduces the vehicle's fuel consumption as well as emissions from the vehicle. In particular, start / stop technology is extremely beneficial when a vehicle is traveling in traffic jam conditions, or is frequently stopped and spends considerable time at traffic signals. In most micro-hybrid electric vehicles, start / stop technology shuts down the engine when the driver presses the brake pedal or clutch to stop the vehicle. The engine is restarted when the brake pedal is released (in the case of an automatic transmission) and / ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/06B60W10/26B60W10/08B60W30/18B60W40/00F02N11/08F02N11/00
CPCB60W10/06B60W10/08B60W10/26B60W30/18018F02N11/0803F02N11/10F02N2200/02F02N2200/063B60W2510/242F02N11/0825F02N2200/023F02N2200/044F02N2200/046F02N2200/061Y02T10/40F02D35/0007
Inventor 拉维·阿特卢鲁查克·德比亚西刘翔鹰泽利科·德列维克大卫·瑟林斯基大卫·安东尼·西莫诺埃里克·迈克尔·拉德马赫科克·派布利戴夫·W·林登
Owner FORD GLOBAL TECH LLC