Unlock instant, AI-driven research and patent intelligence for your innovation.

Control device for a fluid heating system

A technology for controlling devices and fluids, applied to electric heating devices, using electric methods for temperature control, temperature control, etc., can solve problems such as unacceptable fire risks

Pending Publication Date: 2022-02-25
VALEO SYST THERMIQUES
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the event of a power transistor failure, the heating unit may run continuously, which creates an unacceptable fire risk as the water begins to boil and evaporate, especially considering the standard ISO 26262

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control device for a fluid heating system
  • Control device for a fluid heating system
  • Control device for a fluid heating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The drawings and the following description basically contain elements of a specific nature. Therefore, they may not only be used for a better understanding of the present disclosure, but also contribute to its definition, if applicable.

[0022] In the remainder of the description, elements that are the same or that perform the same function are denoted by the same reference numerals. In this specification, for the sake of brevity, these elements are not described in detail in each embodiment. Instead, only the differences between the various embodiments are described in detail.

[0023] As can be seen from the figures, a subject of the invention is a control device 1 for a system for heating a fluid 100 , preferably a liquid fluid, in a motor vehicle.

[0024] The heating system 100 includes an electric heating element 101 . The heating element 101 is advantageously a cylindrical heating tube comprising a heating resistor R of the screen-printed track type, of the s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention concerns a control device comprising: a first electronic switch (2) suitable for being connected to an electric heating element (101) and a second electronic switch (3) suitable for being connected to an electric heating element (101), a sensor for measuring a first temperature (T1) and a microcontroller (4) associated with the first electronic switch (2), the microcontroller (4) being configured to open or close the first switch (2) depending on the first measured temperature value (T1), a sensor for measuring a second temperature (T2) and a logic control module (5) associated with the second electronic switch (3) and comprising a comparator (6) arranged to compare the second measured temperature (T2) with a threshold, the module (5) being configured to open or close the second switch (3) depending on the result of the comparison.

Description

technical field [0001] The invention relates to a control device for a system for heating a fluid, preferably a liquid, for a motor vehicle, in particular an electric or hybrid vehicle. Background technique [0002] In a known manner, such a system for heating a fluid, preferably a liquid, comprises an electric heating element and a chamber formed such that the fluid is heated by said electric heating element in the chamber. [0003] Devices for controlling electric heating elements generally comprise at least one power transistor, which is supplied with a high voltage and whose gate is driven by a circuit supplied with a low voltage. For example, the high voltage is about 350V and the low voltage is about 12V. [0004] In the event of a power transistor failure, the heating unit may run continuously, which creates an unacceptable fire risk when the water starts to boil and evaporate, especially considering the standard ISO 26262. Contents of the invention [0005] The p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19G05D23/24H05B1/02
CPCG05D23/1931G05D23/24H05B1/0236H05B1/0244
Inventor J·福尼耶R·卡利奇
Owner VALEO SYST THERMIQUES