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Single-chip microcomputer MCU delay reset circuit and control method

A delay reset and control method technology, which is applied in the automotive field, can solve the problems of increasing product costs and expensive power management chips, and achieve the effects of controlling product costs, solving the problem of single-chip microcomputer reset, and improving product competitiveness

Inactive Publication Date: 2017-11-03
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the problem in the prior art that the power management chip with delay reset function is expensive and increases product cost, and provides a single-chip MCU delay reset control method in an automobile point drive system

Method used

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  • Single-chip microcomputer MCU delay reset circuit and control method
  • Single-chip microcomputer MCU delay reset circuit and control method

Examples

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Embodiment

[0027] A kind of single-chip microcomputer MCU delay reset circuit of this embodiment, as figure 1 As shown, it includes an MCU unit 1, a switch control unit 4 for controlling output high and low levels, a power-on determination unit 2 for detecting whether the MCU unit is powered on, a delay time control unit 3 for delay control, and an adjustment unit 8. The MCU unit is connected to the switch control unit, the specific switch control unit is connected to the reset pin of the MCU unit, the power-on determination unit is connected to the delay time control unit, and the delay time control unit is connected to the switch control unit.

[0028] The delay time control unit includes a timing unit 5, a delay determination unit 6, and a signal output unit 7. The timing unit is connected with the delay determination unit, the delay determination unit is connected with the signal output unit, the power-on determination unit is connected with the timing unit, and the signal The output...

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PUM

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Abstract

The invention relates to a single-chip microcomputer MCU delay reset circuit in an automobile point driving system and a control method. The problems that in the prior art, a power management chip with a delay reset function is high in price, and production cost is increased are solved. The circuit comprises an MCU, an on-off control unit, a power start judgment unit and a delay time control unit, wherein the MCU is connected with the on-off control unit, the power start judgment unit is connected with the delay time control unit, and the delay time control unit is connected with the on-off control unit. According to the circuit, several discrete devices are matched to achieve the delay reset function of a single-chip microcomputer, reset of the single-chip microcomputer is well realized, usage of a special chip with high price is avoided, and on the basis of guaranteeing product stability and reliability, product cost is effectively controlled, and product competitiveness is improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a single-chip MCU delay reset circuit and a control method in an automobile point drive system. Background technique [0002] Under the background that low-carbon economy has become the mainstream of the times, electric vehicles have become the main direction of current automobile development. The electric drive system is the source of power for electric vehicles, which directly affects the performance of the vehicle. The electric drive controller for electric vehicles can well identify the driver's driving intentions, and can quickly respond to corresponding control outputs such as acceleration and braking, all of which are based on The corresponding functions of the single-chip MCU in the motor controller. Therefore, whether the single-chip MCU can work reliably is a key factor to determine whether the vehicle system is stable and safe. [0003] For the current existing te...

Claims

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Application Information

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IPC IPC(8): G06F1/24
CPCG06F1/24
Inventor 桂星星
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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