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Method for determining the energy state of an electrical energy supply system

A technology of electric energy supply system and energy state, applied in current collectors, electrical control, electric vehicles, etc.

Active Publication Date: 2021-12-17
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, considering only the state of charge of the battery is not enough to know whether the vehicle is in a state of supplying sufficient electrical energy to meet the needs of power consuming devices in various activities

Method used

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  • Method for determining the energy state of an electrical energy supply system
  • Method for determining the energy state of an electrical energy supply system
  • Method for determining the energy state of an electrical energy supply system

Examples

Experimental program
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Embodiment Construction

[0036] figure 1 The electrical configuration of the vehicle is shown, comprising an electrical energy storage 1, such as for example a battery, for example an electrochemical cell; an electric machine, such as an alternator 2; an on-board network 3 of the vehicle, which gathers the devices of the vehicle as electrical energy consumers Electrical energy consuming devices may each be active or inactive as desired. The electrical energy storage 1 is electrically connected to the electric machine and the on-board network and has a ground M. The on-board network 3 is electrically connected to the electric machine 2 and to the electrical ground M.

[0037] The electric machine 2 is mechanically connected to the internal combustion engine 4 so that it can harvest the mechanical energy of the internal combustion engine 4 to produce electrical energy. The assembly of electric machine 2 and electrical energy store 1 forms an electrical energy supply system of an on-board network 4 of ...

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Abstract

Method for determining the energy state of an electrical energy supply system connected to an internal combustion engine (4), an electrical consumer (3) and comprising an electric machine (2) and an electrical energy storage (1), wherein the storage (1) is determined The current charging level of the storage device is characterized in that the method also includes the following steps: - determining the current electric energy production capacity of the motor (2), - if the current charging level of the storage device (1) is higher than that for which the storage device (1) has The determined charge level of a sufficient reserve then determines whether the power supply system is in a current energy state called the nominal current energy state and whether the current power production capacity of the motor (2) is lower than for which the motor (2) can only ensure the supply of power the established threshold.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to the management of the rotational speed and electric energy production of the internal combustion engine of the vehicle. [0002] A vehicle's engine speed affects its emissions and its fuel consumption, but also its ability to produce the electrical energy necessary for the operation of various power consumers. Background technique [0003] Intelligently reducing and manipulating a vehicle's engine speed so as to reduce its polluting emissions, as well as its fuel consumption, represents a major challenge in the automotive industry. [0004] However, reducing engine speed in order to reduce emissions and fuel consumption also has the consequence of reducing the maximum amount of electrical energy that the vehicle can produce, which can be problematic where active electrical consumers on the vehicle are in high demand. [0005] From document EP2138711 is known a system for automatically...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/08H02J7/14B60W10/06B60W10/08B60W10/26B60W20/00B60W20/13
CPCB60W10/06B60W10/08B60W10/26B60W20/00F02D41/083H02J7/1446B60W2030/1809B60W2510/085B60W2510/244B60W2510/305B60W2710/065B60W2710/0655B60W20/13H02J2310/48H02J7/0048
Inventor 亚尼克·博特肖恩文森特·鲁多
Owner PEZHO SITROEN AUTOMOBILS SA
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