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Method for operating a motor vehicle and motor vehicle

A technology for motor vehicles and generators, which is applied in the direction of motor vehicles, electric vehicles, hybrid vehicles, etc., and can solve problems such as insufficient energy consumption optimization control

Active Publication Date: 2017-03-01
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, it is evident that neither the state of charge SOC nor the charge capacity SOH is sufficient to allow an energy-optimized control of the charging process of rechargeable batteries of the motor vehicle type mentioned above

Method used

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  • Method for operating a motor vehicle and motor vehicle
  • Method for operating a motor vehicle and motor vehicle
  • Method for operating a motor vehicle and motor vehicle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] in such as figure 1 In the shown flow chart of an exemplary embodiment of the method according to the invention, first the data necessary to carry out the method are determined and made available, in particular the battery voltage U batt , battery current I batt , battery state of charge SOC and charge acceptance ΔQ Δt , and the propulsion torque T produced by the internal combustion engine prp and brake pressure p brk . In particular, these values ​​are determined continuously and / or at short time intervals compared to the charging process, and thus represent the respective manipulated variable at a specific time. Here the battery voltage U can be determined directly and / or via a sensor batt , voltage and current I batt and brake pressure p brk . For example, from the current position of the accelerator pedal, the propulsion torque T of the internal combustion engine can be determined, if appropriate, by means of a computational model of the internal combustion...

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PUM

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Abstract

A method for operating a motor vehicle driven by an internal combustion engine and having a rechargeable battery and a generator for charging the battery, determining the charge acceptance ΔQΔt of the battery, and selecting either a first charging mode or a second charging mode The charging mode as a function of charge acceptance ΔQΔt, wherein in the first charging mode the generator is driven by the internal combustion engine in order to charge the battery and in the second charging mode the generator is driven by the non-propelled propulsion motion of the motor vehicle in order to Charge the battery. The invention also relates to a correspondingly equipped motor vehicle.

Description

technical field [0001] The invention relates to a method for operating a motor vehicle driven by an internal combustion engine and having a rechargeable battery and a generator for charging the battery, and to a motor vehicle configured for carrying out the method. Background technique [0002] In motor vehicles, batteries are used to provide electrical energy. The battery provides energy to start the internal combustion engine of the motor vehicle and is also used for other loads that need to run when the internal combustion engine is at rest, and other electrical energy is also used for loads when the internal combustion engine is running. The battery is charged by a generator driven by the internal combustion engine. [0003] In order to save fuel, it is known to charge the battery by recovering (recovering) the kinetic energy of the motor vehicle carried out during braking, ie by converting the kinetic energy into electrical energy, by controlling the generator accordin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/18H01M10/44
CPCH01M10/44H01M10/46H01M10/48H01M2220/20H02J7/1446Y02T10/92Y02T10/70Y02E60/10B60W20/40B60W20/13
Inventor 乌尔斯·克里森恩格伯特·世派克托马斯·兰堡
Owner FORD GLOBAL TECH LLC