Operating method for a hybrid vehicle which is driven on a circuit

A technology of hybrid electric vehicles and operating methods, which can be applied to hybrid electric vehicles, motor vehicles, electric vehicles, etc., and can solve problems such as inability of electric machines

Active Publication Date: 2011-10-12
DR ING H C F PORSCHE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, electric machines cannot operate unrestricted

Method used

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  • Operating method for a hybrid vehicle which is driven on a circuit
  • Operating method for a hybrid vehicle which is driven on a circuit
  • Operating method for a hybrid vehicle which is driven on a circuit

Examples

Experimental program
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Embodiment Construction

[0043] Evaluation of a velocity-time diagram (v-t diagram) yields a series of peak-peak-segments when a hybrid vehicle (particularly a hybrid running vehicle) is driven around a circular route (particularly a runway) , and in exactly the same way, but with regard to the graph of the state of charge of the energy storage (in particular of the battery), a sequence of peak-peak-segments is plotted as a function of the travel time on each lap owned. figure 1 One such peak-peak-section is shown for the v-t diagram. The peak-peak-segment begins with a first peak 1 shown on the left, which is followed by an acceleration segment 2 below the slip limit (Rutschgrenze) and followed by an acceleration segment above the slip limit Acceleration section 3 of . The acceleration segment 3 is followed by a braking segment 4 followed by the next peak 1 . as later in figure 1 As shown in , peak 1 to peak 1 are followed by peak-peak-sections with different configurations, depending on the conf...

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Abstract

The invention relates to an operating method for a hybrid vehicle which is driven on a circuit. A hybrid vehicle has an internal combustion engine and a coolable electrical system having at least one connectable electrical machine, power electronics and energy store. The electrical machine can be operated as a motor or a generator. The acceleration profiles of the vehicle, power profiles of the electrical system and temperature profiles of the electrical system are recorded and stored during the respective lap that is being driven and, furthermore, the profile of the performance of the electrical system is optimized with respect to the thermal load capacity of the electrical system in the respective next lap. This allows an optimum power profile of the electrical machine during real operation when a circuit is driven around repeatedly.

Description

technical field [0001] The invention relates to an operating method (Betriebsverfahren) for a hybrid vehicle on a circular route, wherein the hybrid vehicle has an internal combustion engine and a coolable electric system with at least one switchable Electric machines, power electronics, and energy stores for electrical machines that can be operated as motors or generators. Background technique [0002] In a hybrid vehicle such as this one, the energy store is usually in the form of a battery. Alternatively, the energy store used stores kinetic energy from the electric machine in generator mode as rotational energy, which energy is released again during the subsequent motor mode. [0003] When a hybrid sports vehicle is used on circular routes, the optimum power characteristic of the electric system is of decisive importance. This depends on the operating strategy of the drive, which allows optimal use of the electric machine and the electric system close to the thermal lo...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B60W20/00B60W10/08B60W40/12
CPCB60L2240/425B60W10/08B60W2510/085B60W2510/087B60W2510/246B60W2520/105B60W2710/087B60Y2200/114B60W20/11Y02T10/64Y02T10/72B60W2510/244B60W2710/086B60W2556/10B60W2050/0075
InventorJ·梅耶-艾博林M·卡斯滕斯
OwnerDR ING H C F PORSCHE AG