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Method for lowering the air temperature of an engine compartment of a vehicle

A technology of engine compartment and air temperature, which is applied in the direction of engine cooling, engine components, machines/engines, etc., can solve the problems of air temperature level rise, etc., and achieve the effect of large engine power, simple air temperature, and lower requirements

Inactive Publication Date: 2013-12-18
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As a result of these measures, the air temperature level in the engine compartment is constantly increasing, and even if the temperature on the liquid side of the air-liquid-heat exchanger is below 100 °C or around 100 °C, there will be significantly higher 100°C temperature

Method used

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  • Method for lowering the air temperature of an engine compartment of a vehicle
  • Method for lowering the air temperature of an engine compartment of a vehicle
  • Method for lowering the air temperature of an engine compartment of a vehicle

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Embodiment Construction

[0025] figure 1 Onboard electrical system 26 of a vehicle not shown in detail, which is designed as a hybrid vehicle, is shown schematically. The vehicle electrical network 26 includes a first level of 14V ( figure 1 right), the first level comprises a conventional lead-acid battery 28 and is configured to power a first electrical load 30 and an optional starter 64 . In addition, the vehicle electrical system 26 has a second level of 48V, which is used to supply the second electric load 34 and the electric drive 36 with the power battery 32 ( figure 1 left), the electric drive unit includes an electric motor and an inverter. Electric drive 36 is therefore operated with a voltage of up to 48 V in the nominal operating range.

[0026] The DC / DC converter 38 of the vehicle electrical system 26 is provided in a known manner to adapt the supply voltage of the second level to the supply voltage of the first level.

[0027] Furthermore, the second level is used to ensure the elec...

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PUM

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Abstract

The present invention relates to a method for lowering the air temperature (TL) of an engine compartment (12) of a vehicle. The engine compartment is used for accommodating the following components: an internal combustion engine (14), an air-liquid-heat exchanger (18) which is provided with at least one cooling element (20,22) for cooling the air-liquid-heat exchanger (18), and an electric drive (36), wherein at least one cooling element (20,22) based on the temperature of the liquid side of the air-liquid-heat exchanger (18) and the temperature (TEA) of the electric drive (36). Furthermore, the invention relates to an electronic control device (40) for reducing the air temperature (TL) of the engine compartment (12) of the vehicle.

Description

technical field [0001] The invention relates to a method for reducing the air temperature in an engine compartment of a vehicle according to the subject matter of independent claim 1 and at least a method for reducing the air temperature in an engine compartment of a vehicle according to the subject matter of independent claim 7 Electronic controls. Background technique [0002] CO in public 2 - In the context of the discussion and in view of continuously rising fuel prices, for reducing the fuel consumption of vehicles and thus CO 2 Emission systems are becoming more and more important. [0003] Against this background, the hybridization of drive trains of vehicles is becoming more and more important. So-called hybrid vehicles are known from the prior art, which, in addition to a conventional internal combustion engine, have a second energy source, typically an electric drive with an operating voltage of greater than 100 V. [0004] The goal of a hybrid vehicle with an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/00F01P5/02B60K11/06
CPCF01P7/04F01P7/08F01P2001/005F01P2025/00F01P2025/36F01P2050/24F01P2025/48F01P7/10F01P2025/50F01P1/00
Inventor M.施密特
Owner ROBERT BOSCH GMBH