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Multi-line supply unit for a vehicle control device

A power supply unit, vehicle control technology, applied in general control systems, program control, vehicle components, etc., to achieve the effect of reducing voltage drop

Active Publication Date: 2020-05-08
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the voltage drops below 0.6V, which can result in a power loss of up to 2.4W

Method used

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  • Multi-line supply unit for a vehicle control device
  • Multi-line supply unit for a vehicle control device
  • Multi-line supply unit for a vehicle control device

Examples

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Embodiment 20

[0040] exist figure 2 In the exemplary embodiment shown, the hardware control unit 12B and the computing unit 14B of the evaluation and control unit 10B are arranged separately from each other. Depend on figure 2 It is also and can be seen that the hardware control unit 12B is arranged in the area of ​​the switching elements Svs1 , Svs2 , and that the computing unit 14B is integrated into the control device 2 . In addition, in figure 2 In the illustrated embodiment of the multi-branch power supply unit 1B for a vehicle control device 2 , the switching regulator 2 . 1 of the control device 2 is coupled via a passive filter 20 to the common node KP of the multi-branch power supply unit 1B. The passive filter 20 attenuates disturbances in the vehicle network (Bordnetz) (in particular with respect to sinusoidal disturbances from 5 kHz to 20 kHz), the passive filter suppresses the feedback effect of the switching regulator 2.1 on the vehicle network and, when subjected to pola...

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PUM

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Abstract

The invention relates to a multi-line supply unit (1A) for a vehicle control device, having at least two supply lines (S1, S2) which are each connected at the input to at least one vehicle voltage source and are joined at the output in a common node (KP), and a protective device (3A) which comprises in each of the at least two supply lines (S1, S2) at least one first protective diode (Dvs1, Dvs2)which is looped into the at least two supply lines (S1, S2) in the conducting direction between the at least one vehicle voltage source and the node (KP). The invention also relates to a method for operating such a multi-line supply unit (1A). In the method, at least one switching element (Svs1, Svs2) is looped into each of the at least two supply lines (S1, S2) parallel to the at least one protective diode (Dvs1, Dvs2), wherein an evaluation and control unit (10A) senses and evaluates a line voltage (VS1, VS2) at the inputs of each of the at least two supply lines (S1, S2) and a supply voltage (VP), protected against polarity reversal, at the common node (KP) and actuates the switching elements (Svs1, Svs2) in the at least two supply lines (S1, S2) via corresponding actuation signals (Svs1_CTL, Svs2_CTL) depending on the evaluation.

Description

technical field [0001] The invention is based on a multi-drop power supply unit for a vehicle control unit in accordance with the development of independent claim 1 . The subject of the invention is also an operating method for such a multi-drop power supply unit. Background technique [0002] The electronic control equipment in the vehicle is normally powered via the first switchable terminal (KL 15R) and / or via the second switchable terminal (KL 15) which is in the first ignition lock position (radio ) is connected to the energy source, and the second switchable terminal is connected to the energy source in the second ignition lock position (ignition). If it is a control unit with "sleep mode" (which is to be energized even when the vehicle is parked), the control unit is energized via the permanent positive (Dauerplus) terminal (KL30), which is connected independently of the ignition position Energy source connection. When the vehicle is parked in active "sleep mode", ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/20H02H7/26H02J3/38H02J1/10
CPCH02H3/20H02H7/26H02J1/108H02J3/38B60R16/03G05B19/042G05B2219/2637H02H11/002H02H1/06H02J2310/46H02H7/20H02J1/10H02J2310/40H02H7/268H02H11/003
Inventor H·舒马赫D·福格特
Owner ROBERT BOSCH GMBH
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