CN213807913U

CN213807913U - Circuit capable of improving maintenance safety performance and controlling starting function under vehicle

Info

Publication number: CN213807913U
Application number: CN202023152067.7U
Authority: CN
Inventors: 李志祥; 沈运超; 刘康; 万红技; 张俊祥
Original assignee: Hefei Yunnei Power Co ltd
Current assignee: Hefei Yunnei Power Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-07-27
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a circuit that can promote maintenance security performance and control starting function under car in the automobile circuit design technical field, including 24V car battery, fuse FU, ignition switch S3, whole car engine ECU, neutral gear switch S1, start control switch S2 under the car, start relay and starter, the negative pole of 24V car battery is connected with the negative pole wiring port of whole car engine ECU, fuse FU has concatenated in the positive pole of 24V car battery, the other end of fuse FU is parallelly connected with the positive pole wiring port and the ignition switch S3 of whole car engine ECU, on the basis that current whole car electrical apparatus and whole car engine ECU control vehicle start, increases start control switch S2 under the car, improves the car repair security, has alleviateed the psychological pressure of maintenance personal when working under the car, has also improved maintenance personal' S work efficiency simultaneously, is applicable to fuel oil vehicle and electric motor car, has market popularization value.

Description

Circuit capable of improving maintenance safety performance and controlling starting function under vehicle

Technical Field

The utility model relates to an automobile circuit design technical field specifically is the circuit that can promote maintenance security performance and control starting function under the car.

Background

The automobile is present in the street and lane, plays an important role in production and life, and consists of a plurality of parts, wherein the ECU is an engine control unit, namely the core of electric control fuel injection, also commonly called as an engine computer, and is a traction control unit, the existing ECU outputs 24V voltage to a K88 pin of the ECU when a key is turned ON after the whole automobile is powered ON, the ECU activates a system after detecting, an S3 switch is arranged in an ST gear when the automobile needs to be started, K35 is electrified, the K71 of the ECU outputs low level ON the premise that the S1 and the S2 switch are closed, a starting relay starts to work, the system starts successfully, at present, when a maintenance person works under the automobile, a driver or other persons can normally start the automobile to be engaged to drive the automobile when the maintenance person works under the automobile, the driver starts the automobile to be engaged to run under the condition that the driver is unaware of the operation under the maintenance person, the incident appears easily, so need to design the circuit that is convenient for control car when the maintenance starts urgently, based on this, the utility model designs a can promote maintenance security performance and the circuit of controlling the start function under the car to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit that can promote maintenance security performance and control start function under the car to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: can promote the circuit of maintenance security performance and the control function of starting under the car, including 24V car battery, fuse FU, ignition switch S3, whole car engine ECU, neutral gear switch S1, the control switch S2 of starting under the car, start relay and starter, the negative pole of 24V car battery is connected with the negative pole wiring port of whole car engine ECU, the positive pole of 24V car battery has concatenated fuse FU, the other end of fuse FU has concatenated the positive pole wiring port and the ignition switch S3 of whole car engine ECU, the ON and ST shelves of ignition switch S3 are connected with K88 and K35 port of whole car engine ECU respectively, it has idle gear switch S1 and the control switch S2 of starting under the car to concatenate between the K68 and K19 ports of whole car engine ECU, it has concatenated the start relay between the K29 and the K71 port of engine ECU, the output of start relay has concatenated, and the grounding end of the starter is grounded.

Furthermore, the starting relay adopts a 24V and 70A type relay.

Further, the under-vehicle start control switch S2 is mounted on the vehicle side or the vehicle chassis.

Further, the button surface of the under-vehicle start control switch S2 is coated with an RB-048 antistatic coating.

Furthermore, the starting relay is arranged on the central electrical box of the whole vehicle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses on the basis that current whole car electrical apparatus and whole car engine ECU control vehicle started, increase under the car start control switch S2, improve and repair the car security, alleviateed the maintenance personal under the car psychological pressure of during operation, also improved maintenance personal' S work efficiency simultaneously, be applicable to and fire oil car and electric motor car, have market spreading value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic circuit diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1, the present invention provides a technical solution: the circuit capable of improving the maintenance safety performance and the under-vehicle control starting function comprises a 24V automobile storage battery, a fuse FU, an ignition switch S3 and a whole-vehicle engine ECU, the system comprises a neutral switch S1, an under-vehicle starting control switch S2, a starting relay and a starter, wherein the cathode of a 24V automobile storage battery is connected with the cathode wiring port of a whole vehicle engine ECU, the anode of the 24V automobile storage battery is connected with a fuse FU in series, the other end of the fuse FU is connected with the anode wiring port of the whole vehicle engine ECU and an ignition switch S3 in parallel, the ON and ST gears of the ignition switch S3 are respectively connected with the K88 and the K35 ports of the whole vehicle engine ECU, the neutral switch S1 and the under-vehicle starting control switch S2 are connected between the K68 and the K19 ports of the whole vehicle engine ECU in series, the starting relay is connected between the K29 and the K71 ports of the whole vehicle engine ECU in series, the output end of the starting relay is connected with the starter in series, and the grounding end of the starter is grounded.

The starting relay adopts a 24V and 70A type relay, and meets the actual circuit requirement;

the under-vehicle starting control switch S2 is arranged on the side surface or the chassis of the vehicle and marked with an obvious switch mark for convenient discovery;

the RB-048 antistatic coating is coated on the surface of the button of the under-vehicle starting control switch S2, so that static electricity is prevented from being touched, and timely operation is facilitated;

the starting relay is arranged on the central electrical box of the whole vehicle, so that the installation space and wiring are conveniently and reasonably arranged.

One specific application of this embodiment is: the starting relay works under the condition that after the ECU is electrified and works, the ports K68 and K29 are high-level output; when the ignition switch S3 is in the 'ST' gear, the port k35 is in a high level; the port K19 needs high level, and the three conditions are that the port K71 is low level output when the three conditions are simultaneously realized;

the whole vehicle ignition switch S3 is arranged at an ON gear, after an ECU of a whole vehicle engine is electrified and works, a pin K68 is provided with a power supply V1 output, a pin K29 is provided with a power supply V2 output, when the gear of a whole vehicle gearbox is arranged at a neutral gear, a neutral gear switch S1 is switched ON, and at the moment, a starting control switch S2 under the vehicle is required to be switched ON, so that a port K19 can be electrified; then the driver turns on the ignition switch S3 to be in ST gear, the K35 pin is at high level, the K71 port is at low level, the relay is started to work, and the whole vehicle is started; when someone works under the vehicle, the vehicle cannot be started by turning off the under-vehicle start control switch S2.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Can promote the circuit of maintenance security performance and the control function of starting under the car, including 24V car battery, fuse FU, ignition switch S3, whole car engine ECU, neutral switch S1, the car control switch S2 that starts under the car, start relay and starter, its characterized in that: the negative pole of 24V automobile storage battery is connected with whole car engine ECU ' S negative pole wiring port, 24V automobile storage battery ' S positive pole has concatenated fuse FU, fuse FU ' S the other end has concatenated whole car engine ECU ' S positive pole wiring port and ignition switch S3, ignition switch S3 ' S ON and ST shelves are connected with whole car engine ECU ' S K88 and K35 port respectively, it has idle stop switch S1 and the car to start control switch S2 to concatenate between whole car engine ECU ' S K68 and the K19 port, it has concatenated starting relay to start between whole car engine ECU ' S K29 and the K71 port, starting relay ' S output has concatenated the starter, the earthing terminal ground connection of starter.

2. The circuit capable of improving maintenance safety and an under-vehicle control start function according to claim 1, wherein: the starting relay adopts a 24V and 70A type relay.

3. The circuit capable of improving maintenance safety and an under-vehicle control start function according to claim 1, wherein: the under-vehicle start control switch S2 is mounted on the vehicle side or the vehicle chassis.

4. The circuit capable of improving maintenance safety and an under-vehicle control start function according to claim 3, wherein: the button surface of the under-vehicle start control switch S2 is coated with RB-048 antistatic coating.

5. The circuit capable of improving maintenance safety and an under-vehicle control start function according to claim 1, wherein: the starting relay is arranged on the central electric box of the whole vehicle.