CN213649504U

CN213649504U - Double-end car owner secondary control right auto-change over device

Info

Publication number: CN213649504U
Application number: CN202022695546.7U
Authority: CN
Inventors: 马敏; 王伟; 赵文强; 刘世勋; 冀旭
Original assignee: Inner Mongolia First Machinery Group Hongyuan Electrical Appliance Co ltd
Current assignee: Inner Mongolia First Machinery Group Hongyuan Electrical Appliance Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-09
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to a double-end car owner vice control power auto-change over device mainly is applied to major-minor double-end type medical ambulance or rescue vehicle of the same type, has solved the difficult problem that ordinary rescue vehicle gets into narrow tunnel and can't withdraw from smoothly. The device mainly comprises a mechanical shell (1), a cover plate (2), a user interface (3), a power panel (4) and a core control panel (5); the utility model discloses an information such as parking, speed of a motor vehicle, engine speed, control right change over switch in the major-minor locomotive of sampling respectively, then power output and major-minor throttle switch such as rational distribution 15 electricity, 30 electricity, the whole car driving system of final realization in a certain time period only allows a locomotive to have the control right to accomplish in some such as tunnel or narrow lane carry out the quick entering and withdraw from of emergency task vehicle.

Description

Double-end car owner secondary control right auto-change over device

Technical Field

The utility model belongs to the technical field of vehicle driving system control, concretely relates to right auto-change over device of double-end car owner vice control is applied to and has main vice double-end type rescue car, medical ambulance or type of car.

Background

With the acceleration of the modern construction process, tunnels in China are gradually increased, narrower roadways are more and more arranged in certain cells, and under the condition, if a fire or other emergency occurs, the rescue vehicles have large volume and are difficult to turn around, turn around and the like in a limited space, so that some emergency vehicles capable of freely advancing and retreating forwards and backwards are urgently needed in the market. The double-end rescue vehicles in the existing market are imported vehicles, and the selling price is nearly ten million.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-end car owner secondary control power auto-change over device, the technical problem who solves is: the problem that the ordinary rescue vehicle cannot exit smoothly when entering the narrow tunnel is solved.

In order to solve the technical problem, the utility model provides a double-end car owner secondary control power auto-change over device mainly comprises machine with casing, power strip, core control panel and user interface. The utility model discloses an information such as parking in the major-minor locomotive of sampling respectively, the speed of a motor vehicle, engine speed, control right change over switch combines software logic analysis, then carries out power output and major-minor throttle switch such as rational distribution 15 electricity, 30 electricity, finally realizes that whole car driving system only allows a locomotive to have control right in a certain time quantum to accomplish in some such as tunnel or narrow lane carry out the quick entering and withdraw from of emergency task vehicle.

The power strip passes through voltage stabilizing chips such as LM2576 and TPS7B6933-Q1 and will put in order car DC24V voltage conversion and become the utility model discloses the system power consumption to strategy such as watchdog promotes the interference immunity and the stability of system on protection circuit cooperation software such as recoverable fuse, excessive pressure, overcurrent through on the hardware.

The utility model discloses a main control chip adopts STM32F407VGT7 singlechip as high speed processor, and CAN bus communication adopts isolation chip ADM3053 as the transceiver, and CPU passes through CAN bus collection speed of a motor vehicle and engine speed signal, and only when the speed of a motor vehicle and engine speed satisfied certain numerical value that the user set for, just allow to carry out major-minor locomotive between driving system's switching.

The utility model discloses an improve interference immunity, IO signals such as manual brake signal, neutral gear signal of gathering in the design process are whole to be kept apart through photoelectric device TLP281-4 and are handled. The power distribution output of 15 electricity, 30 electricity and the like is realized through a BTT6050-2EKA electronic switch with a short-circuit protection function, and the switching of the main accelerator and the auxiliary accelerator is realized through a high-speed analog switch TS5A 23157.

The utility model discloses be provided with the fault alarm lamp in major-minor locomotive respectively, this alarm lamp passes through NPN triode control bright going out, and every fault lamp is red green double-colored pilot lamp. The electric equipment gives an alarm through the flashing of the red fault lamp with the frequency of 1Hz when in short circuit, gives an alarm through the flashing of the yellow fault lamp with the frequency of 1Hz when in open circuit, and gives an alarm through the flashing of the red fault lamp with the frequency of 4Hz when in over current.

The utility model discloses the acquiescence owner car has the control right after the electricity is gone up to the system.

Has the advantages that: the utility model discloses information such as parking, speed of a motor vehicle, engine speed, control right change over switch in the major-minor locomotive of sampling respectively, then power output and major-minor throttle switch such as rational distribution 15 electricity, 30 electricity, the whole car driving system of final realization in a certain time period only allows a locomotive to possess the control right to accomplish in some such as tunnel or narrow lane carry out the quick entering and withdraw from of emergency task vehicle.

Drawings

Figure 1 is an outline view of the present invention

Fig. 2 is a schematic diagram of the system of the present invention

Fig. 3 is a schematic diagram of an interface of an electrical system of the present invention.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following description will be made in further detail with respect to the embodiments of the present invention.

The utility model provides a double-head vehicle master-slave control right switching device, which mainly comprises a mechanical shell (1), a cover plate (2), a user interface (3), a power panel (4) and a core control panel (5);

the double-head vehicle comprises two cabs, a set of power system and a vehicle body, wherein the two cabs are respectively arranged at two ends of the vehicle body, a control right switching switch is further arranged in each cab, and a double-head vehicle owner and auxiliary control right switching device finally realizes that the whole power system only allows one vehicle head to have a control right in a certain time period by respectively collecting information of 15 electricity, 30 electricity, the control right switching switch, the vehicle speed and the engine rotating speed in a main vehicle head and an auxiliary vehicle head, so that rapid entering and exiting of vehicles for executing emergency treatment tasks in tunnels or narrow roadways are completed.

The shell is fixed at the designated position of the whole vehicle through a fixing hole (100), and signals such as digital IO (input/output) quantity, bus communication, power supply and the like of a control right change-over switch, a parking signal and the like in the main and auxiliary driving cabins are introduced into the shell through a user interface (3); the lead introduced by the user interface (3) is respectively connected to the power panel (4) and the core control panel (5), and the power panel and the core control panel are fixed at the specified positions in the shell through screws;

the whole vehicle DC24V power is converted into the power consumption of a core control panel through a power panel (4), wherein the conversion from DC24V to DC5V is realized through a switch type voltage stabilizing chip LM2576HV-5 and is used for supplying power to partial digital devices; DC3.3V power supply of the main control CPU is realized by DC5V conversion through a linear voltage stabilization chip TPS7B6933-Q1 with a short-circuit protection function;

the core control board (5) comprises a master control CPU, an optical coupling isolation circuit, an intelligent power distribution circuit, an alarm driving circuit, a CAN driving circuit and a double-channel single-pole double-throw high-speed analog switch; the system is used for acquiring and processing information of 15 electricity, 30 electricity, a control right change-over switch, vehicle speed and engine rotating speed in the main locomotive and the auxiliary locomotive;

the intelligent distribution circuit is used for switching the whole vehicle bus DC24V to equipment with a control right in a cab through a switch;

double-channel single-pole double-throw high-speed analog switch for realizing synchronous switching of two throttles in cab

The main control CPU adopts STM32F407VGT7, the single chip microcomputer serves as a main control processor, an isolation chip ADM3053 serves as a transceiver for information interaction with a whole vehicle CAN bus, all switch signals are isolated through an optocoupler TLP281-4, power distribution output is achieved through a BTT6050-2EKA electronic switch with a short-circuit protection function, and switching of a main throttle and an auxiliary throttle is achieved through a single-pole double-throw high-speed analog switch TS5A 23157. An external expansion CAN bus interface, an interrupt input interface and a timer are arranged on the controller;

the vehicle speed pulse signal of the whole vehicle is connected to a core control panel (5) through a wire of a user interface (3), the vehicle speed pulse signal is firstly processed through an optical coupling isolation circuit, then is converted and output into low-level 0V and high-level 3.3V pulse signals through a voltage comparator formed by LM139, the signals are connected to an interrupt interface of a main control CPU, the vehicle speed V1 is obtained according to the number of vehicle speed pulses in unit time by combining a timer of the main control CPU, and the calculation method is executed according to a 1939 protocol and belongs to the prior art.

The engine rotating speed information is accessed to a CAN bus interface of a main control CPU through a CAN driving circuit with photoelectric isolation (adopting a conversion chip ADM3053), and the real-time rotating speed V2 of the engine CAN be calculated according to a 1939 protocol.

When the driver presses the control right switching button, the CPU firstly judges the cab where the current control right is located according to the running direction of the vehicle, and if the control right is located in the current cab, no action is executed. If the driving right is in the other cab, the CPU firstly monitors the vehicle speed, the engine rotating speed and the hand brake signal, and can perform control right switching action only when the three conditions of the vehicle speed being 0, the engine rotating speed being less than a set value and the parking signal being effective are all met.

When receiving a control right switching instruction and determining to execute a switching action, a CPU drives a dual-channel single-pole double-throw high-speed analog switch (TS5A23157) to realize the synchronous switching of the throttles in the two cabs, the switching speed can reach microsecond level, meanwhile, the CPU drives a single-pole double-throw electronic switch BTT6050-2EKA of an intelligent power distribution circuit to realize the power distribution output of buses DV24 to 15 power, 30 power and the like of the cab with the control right at present so as to supply the work of related equipment, and finally, the switching work of a power system is completed.

Each circuit of power distribution output has the functions of short circuit, open circuit and overcurrent detection, the short circuit gives an alarm through the flicker of the red fault lamp with the frequency of 1Hz, the open circuit gives an alarm through the flicker of the yellow fault lamp with the frequency of 1Hz, and the overcurrent gives an alarm through the flicker of the red fault lamp with the frequency of 4 Hz.

The power-off state storage function is realized, and after each power-on, the system automatically switches the control right to the control room where the power-off is performed.

Through the operation, the control of the oil supply of the engine at any time is ensured, and only one way of the control of the engine is ensured, and only one of the main locomotive and the auxiliary locomotive has the control right of the whole vehicle.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a double-end car owner secondary control power auto-change over device which characterized in that: the power supply device mainly comprises a mechanical shell (1), a cover plate (2), a user interface (3), a power supply board (4) and a core control board (5); the control right switch and parking signal, bus communication and power signal in the two cockpit are led into the mechanical shell through the user interface (3); the user interface (3) is respectively connected to the power panel (4) and the core control panel (5), and the power panel and the core control panel are fixed inside the mechanical shell; the core control panel is used for collecting and processing information of power consumption, control right change-over switch, vehicle speed and engine rotating speed in the main locomotive and the auxiliary locomotive.

2. The apparatus of claim 1, wherein the switching device comprises: the mechanical shell is fixed to a designated position of the whole vehicle through a fixing hole (100).

3. The apparatus of claim 1, wherein the switching device comprises: the double-end vehicle comprises two driving cabs, a set of power system and a vehicle body, wherein the two driving cabs are respectively arranged at two ends of the vehicle body, and a control right change-over switch is arranged in each driving cab.

4. The apparatus of claim 1, wherein the switching device comprises: the whole vehicle DC24V power is converted into the power consumption of the core control board through the power board (4).

5. The apparatus of claim 1, wherein the switching device comprises: the core control board (5) comprises a master control CPU, an optical coupling isolation circuit, an intelligent power distribution circuit, an alarm driving circuit, a CAN driving circuit and a double-channel single-pole double-throw high-speed analog switch; the intelligent distribution circuit is used for switching the bus of the whole vehicle to equipment with a control right in a cab through a switch; the double-channel single-pole double-throw high-speed analog switch is used for realizing synchronous switching of the throttles in the two driving cabs, and the main control CPU adopts a structure provided with an external extended CAN bus interface, an interrupt input interface and a timer.

6. The apparatus according to claim 5, wherein: the speed pulse signal of the whole vehicle is connected to the core control panel (5) through the lead of the user interface (3).

7. The apparatus according to claim 5, wherein: the main control CPU adopts an STM32F407VGT7 single chip microcomputer as a main control processor, performs information interaction with a whole vehicle CAN bus and adopts an isolation chip ADM3053 as a transceiver.

8. The apparatus according to claim 6, wherein: and fault alarm lamps are respectively arranged in the main headstock and the auxiliary headstock and are controlled to be turned on and off through NPN triodes.