A traction system for a straddle-type monorail sightseeing vehicle

Abstract

The present application relates to the technical field of sightseeing car traction system, and disclose a kind of traction system for straddle type monorail sightseeing car, including power supply brake detection module, path monitoring system, monorail overhead line and wireless communication module;The power supply brake detection module includes energy storage module and traction control module, the energy storage module is used to provide direct current, and the power energy is input to traction control module by DC / DC converter;The power supply brake detection module is used to change DC1500V into AC1500V;The power supply brake detection module includes direct current DC mode and alternating current AC mode;Power supply brake detection module includes ramp conversion module, ramp conversion module is used to track the slope on track in the process of running, path identification slope section, the path identification slope section is provided with climbing mode, flat slope mode and downhill deceleration mode.The present application has the advantages of automatic traction speed regulation and automatic conversion of switching direct current and alternating current.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sightseeing vehicle traction system, in particular to a traction system for straddle type monorail sightseeing vehicle. BACKGROUND

[0002] The straddle type monorail sightseeing vehicle belongs to a kind of regional electric vehicle, which can be divided into tourist sightseeing vehicle, community viewing vehicle, electric old car and small elf car. It is an environmentally friendly electric passenger vehicle specially designed for tourist attractions, garden hotels, resorts, parks, large amusement parks, closed communities and schools. The whole vehicle driving of the electric sightseeing vehicle is mainly driven by the motor driving system to convert electrical energy into mechanical energy, which determines the performance of the electric sightseeing vehicle.

[0003] Most of the existing straddle type monorail sightseeing vehicles are driven by DC motors. However, due to geographical problems, many places need to climb. When selecting a DC motor, the speed cannot be instantaneously increased to improve the climbing ability. Therefore, motor engineers have developed AC motors. However, the starting and speed regulation of AC motors are poor, so in the traction work, how to use DC motors and AC motors in combination plays a significant role in the control of the traction system. SUMMARY

[0004] The present application provides a traction system for straddle type monorail sightseeing vehicle, which has automatic speed regulation and switching of DC and AC power on the monorail in the scenic area, and has the advantages of full-process monitoring safety and reminding, solving the problem of how to use DC motors and AC motors in combination in the traction work mentioned in the background technology.

[0005] The present application provides the following technical solution: a traction system for straddle type monorail sightseeing vehicle, comprising a power supply braking detection module, a path monitoring system, a monorail overhead contact system and a wireless communication module.

[0006] The power supply braking detection module comprises an energy storage module and a traction control module. The energy storage module is used to provide DC power and input electrical energy to the traction control module through a DC / DC converter. The DC / DC converter conversion circuit is connected between the energy storage module and the rectifier-inverter circuit, which is used to convert the DC power provided by the energy storage module or the DC power transmitted by the rectifier-inverter circuit.

[0007] The energy storage module is connected with the power supply braking detection module, and the power supply braking detection module is connected with the monorail overhead contact system. The power supply braking detection module is used to change DC 1500V to AC 1500V. The power supply braking detection module comprises a DC mode and an AC mode.

[0008] The power supply brake detection module comprises a ramp conversion module, and the ramp conversion module is used for path identification of a slope section on the track during operation of the monorail sightseeing vehicle. The path identification slope section is provided with three modes, i.e., a climbing mode, a flat slope mode and a downhill deceleration mode. The flat slope mode is used for DC mode traction power operation when the monorail sightseeing vehicle is on a flat slope or a ≤15%≤36% climbing slope. The climbing mode is used for changing the current DC mode DC1500V to AC1500V AC for climbing when the monorail sightseeing vehicle is on a slope higher than 36%. The downhill deceleration module is used for decelerating the speed of traction to not more than 10Km / h during downhill.

[0009] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, the path monitoring system comprises a track detection module, a GPS module and a visualization module, and the track detection module and the GPS module are connected with a wireless communication module.

[0010] The visualization module is used for visualizing and displaying the sightseeing vehicle and the marks on the track in a three-dimensional picture in the navigation system of the vehicle-mounted operation control module during the whole monorail line.

[0011] The track detection module is used for detecting and marking the "turning point", "overheight point", "climbing point" and "downhill point" on the track, and the marks are visualized in the navigation system of the vehicle-mounted operation control module by the visualization module.

[0012] The GPS module is used for displaying the high-precision radio navigation positioning position of the sightseeing vehicle in the navigation system of the vehicle-mounted operation control module as a main mark.

[0013] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, the visualization module comprises a reminding module, and the reminding module is used for a buzzer player and a voice player.

[0014] The reminding module plays a voice or buzzer reminder through the buzzer player and the voice player when approaching the "turning point", "overheight point", "climbing point" and "downhill point" on the monorail track 10M-20M in advance.

[0015] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, the traction control module comprises a turning deceleration unit, a downhill deceleration unit and an overheight speed limiting unit.

[0016] The turning deceleration unit is used for sending a signal to the traction control module when a "turning" detection signal is received, so as to control the VCU controller to perform driving control, including acceleration and deceleration, constant speed and braking working conditions.

[0017] The downhill deceleration unit is used to send a signal to the traction control module when a "downhill" detection signal is received, and then control the VCU controller to perform drive control, including acceleration, deceleration, constant speed, and braking conditions.

[0018] The super high speed limit unit is used to send a signal to the traction control module when a "super high" detection signal is received, and then control the VCU controller to perform drive control, including acceleration, deceleration, constant speed, and braking conditions.

[0019] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, the traction control module further includes a power drive system, a pantograph, a transformer, a traction converter, a traction motor, a shaft coupling, a gear box, an axle, and a wheel.

[0020] The traction system for the straddle-type monorail sightseeing vehicle further includes a monitoring module, which is used to perform real-time monitoring on electrical devices and mechanical devices in the power supply braking detection module and the path monitoring system.

[0021] The monitoring module includes a current output monitoring module and a fault module.

[0022] The current output monitoring module is used to perform current detection during switching between the direct current mode and the alternating current mode, and includes real-time monitoring on the voltage of the battery pack in the energy storage module.

[0023] The fault module is used to perform fault monitoring on the braking device, the ATO device, electronic equipment, and mechanical equipment, and perform real-time alarm processing when a fault condition is monitored.

[0024] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, when the fault module monitors a fault event, it is determined whether the traction control module allows control of the switch control, and the traction control module determines whether to allow control of the traction control module according to the fault event to select the closing or opening of the switch.

[0025] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, the traction control module includes a double braking unit, which can realize double braking function when the sightseeing vehicle is running downhill.

[0026] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, when the power supply braking detection module is in normal operation, the current output monitoring module monitors the power supply mode, determines whether it is a direct current mode, and if the power supply mode is a direct current mode, changes to an alternating current mode when climbing is required, and then sends alternating current through the direct current motor and mechanical transmission to the alternating current generator.

[0027] Wherein, the inversion is opposite to the current conversion process of rectification, converts DC into AC; when the inversion side, that is, the AC side, is connected in the power grid, it is active inversion, and when the inversion side, that is, the AC side, is directly connected with the load, it is passive inversion;

[0028] The inversion circuit can convert the DC power supply into AC power of any frequency and voltage under the action of the control circuit, and when the DC power supply needs to supply power to the AC load, the opening and closing of the current switch are adjusted, and the frequency of the output AC power is changed by controlling the switching period of the switch.

[0029] As an optional solution of the traction system for the straddle-type monorail sightseeing vehicle, the electric energy in the energy storage module is calculated into the endurance mileage, and the endurance mileage is sent to the current output monitoring module.

[0030] The present application has the following advantages:

[0031] 1. The traction system for the straddle-type monorail sightseeing vehicle, after real-time detection of the path conditions of the monorail, the energy storage module is used to provide electric energy to the traction control module, and the DC power is converted into AC power through a DC / DC converter, and then converted into DC power, which is convenient for using DC mode in the process of flat slope and switching AC mode when climbing, realizing full-automatic conversion of AC and DC, thereby reducing the disadvantages of DC and AC, and well utilizing the advantages of DC motor and AC motor, not only improving the efficiency of traction, but also saving certain cost.

[0032] 2. The traction system for the straddle-type monorail sightseeing vehicle, after monitoring the entire monorail track through the path monitoring system, the “turning place”, “overheight place”, “climbing place” and “downhill place” on the track are detected and marked in real time, intelligently recognized and transmitted to the traction control module, which is convenient for switching DC and AC modes, realizing full-automatic conversion of AC and DC, and improving the intelligence of traction power.

[0033] 3. The traction system for the straddle-type monorail sightseeing vehicle, the voice and buzzer reminding module of the visual module reminds 10M-20M before approaching the “turning place”, “overheight place”, “climbing place” and “downhill place” on the monorail track, which not only can be clearly displayed in the background visualization, but also can automatically or manually switch the speed of the traction system by the staff. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The present application is a structural flowchart.

[0035] Figure 2 The present application is a structural traction control module flowchart. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0037] Embodiment one, the straddle type monorail sightseeing vehicle belongs to a kind of regional electric vehicle, and can be divided into tourist sightseeing vehicle, community house viewing vehicle, electric old car, small elf car, and is a kind of environment-friendly electric passenger vehicle specially used for tourism scenic spot, garden hotel, resort, park, large amusement park, closed community and school. The whole vehicle driving of electric sightseeing vehicle is mainly driven by motor driving system to convert electric energy into mechanical energy, so the performance of electric sightseeing vehicle is determined.

[0038] Most of the existing straddle type monorail sightseeing vehicles are driven by DC motor, but many scenic spots need to climb due to geographical problems, and many places need to climb. When selecting DC motor, the rotating speed cannot be instantaneously increased to improve the climbing ability, so motor engineers have researched AC motor. However, if all AC motors are used, the starting and speed regulation of AC motor are poor, so in the traction work, how to use DC motor and AC motor in combination plays a significant role in the control of traction system.

[0039] The present application provides the following technical scheme: a traction system for straddle type monorail sightseeing vehicle, please refer to Figure 1 Figure 2 , including power supply braking detection module, path monitoring system, monorail overhead line and wireless communication module;

[0040] The power supply braking detection module includes energy storage module and traction control module, the energy storage module is used to provide DC power, and the energy storage module inputs electric energy to the traction control module through DC / DC converter;The DC / DC converter conversion circuit is connected between the energy storage module and the rectifier-inverter circuit, for converting the DC power provided by the energy storage module or converting the DC power transmitted by the rectifier-inverter circuit;

[0041] The energy storage module is connected with the power supply braking detection module, and the power supply braking detection module is connected with the monorail overhead line, and the power supply braking detection module is used to change DC1500V into AC1500V;The power supply braking detection module includes DC mode and AC mode;

[0042] ​The power supply brake detection module comprises a ramp conversion module, which is used for path identification of a slope section on the track when the monorail sightseeing vehicle is running, and the path identification of the slope section is provided with three modes, i.e., a climbing mode, a flat slope mode and a downhill deceleration mode; the flat slope mode is used for running in a direct current mode when the monorail sightseeing vehicle is on a flat slope or a slope with a climbing degree of ≤15%≤36%; the climbing mode is used for climbing when the monorail sightseeing vehicle is on a slope with a climbing degree higher than 36%, and the current direct current mode DC1500V is changed to an alternating current mode AC1500V; and the downhill deceleration mode is used for decelerating the speed of the monorail sightseeing vehicle to not more than 10Km / h during downhill running.

[0043] The power supply brake detection module monitors the power supply mode when the sightseeing vehicle is running normally, judges whether the power supply mode is a direct current mode, changes the direct current mode to an alternating current mode when the direct current mode needs to be changed to the alternating current mode during climbing, and sends alternating current through the direct current motor and mechanical transmission to the alternating current generator.

[0044] The inversion is a current conversion process opposite to the rectification, and the direct current is converted into the alternating current. When the inversion side, i.e., the alternating current, is connected to the power grid, the inversion is active inversion. When the inversion side, i.e., the alternating current, is directly connected to the load, the inversion is passive inversion.

[0045] The inversion circuit can convert the direct current power into alternating current power with any frequency and voltage under the action of the control circuit. When the direct current power needs to be supplied to the alternating current load, the opening and closing of the current switch are adjusted, and the frequency of the output alternating current is changed by controlling the switching period of the switch.

[0046] In the embodiment, after the real-time detection of the path and road conditions of the monorail, the energy storage module is used to provide electric energy to the traction control module, and the direct current is changed into alternating current through the DC / DC converter, and then the alternating current is changed into direct current, so that the direct current mode is used during flat slope running, the alternating current mode is switched during climbing, the automatic conversion of the alternating current and the direct current is realized, the disadvantages of the direct current and the alternating current are reduced, the advantages of the direct current motor and the alternating current motor are well utilized, the traction efficiency is improved, and the cost is saved.

[0047] In the embodiment, after the real-time detection of the path and road conditions of the monorail, the energy storage module is used to provide electric energy to the traction control module, and the direct current is changed into alternating current through the DC / DC converter, and then the alternating current is changed into direct current, so that the direct current mode is used during flat slope running, the alternating current mode is switched during climbing, the automatic conversion of the alternating current and the direct current is realized, the disadvantages of the direct current and the alternating current are reduced, the advantages of the direct current motor and the alternating current motor are well utilized, the traction efficiency is improved, and the cost is saved. Figure 1 - Figure 2 The path monitoring system comprises a track detection module, a GPS module and a visualization module, and the track detection module and the GPS module are connected to the wireless communication module.

[0048] The visualization module is used for visualizing and displaying the marks on the monorail and the track in the navigation system of the vehicle-mounted operation control module through a three-dimensional picture during the whole monorail line process.

[0049] The track detection module is used for detecting and marking the "turning point", "high point", "climbing point" and "downhill point" on the track, and the visual module is used for visualizing the marking in the navigation system of the vehicle-mounted operation control module.

[0050] The GPS module is used for displaying the high-precision radio navigation positioning position of the sightseeing vehicle in the navigation system of the vehicle-mounted operation control module as a main mark.

[0051] The electric energy in the energy storage module is calculated and converted into the endurance mileage, and the endurance mileage is sent to the current output monitoring module.

[0052] In this embodiment, after the whole monorail track is monitored by the path monitoring system, the "turning point", "high point", "climbing point" and "downhill point" on the track are detected and marked in real time, intelligently recognized and transmitted to the traction control module, so as to facilitate switching between DC and AC modes, realize full-automatic conversion between AC and DC, and improve the intelligence of traction use power.

[0053] Embodiment three, this embodiment is an explanation and description based on embodiment 1, for details, please refer to Figure 1 Figure 2 The visual module includes a reminder module, and the reminder module is used for a buzzer player and a voice player.

[0054] The reminder module plays a voice or buzzer reminder in the buzzer player and the voice player when approaching the "turning point", "high point", "climbing point" and "downhill point" on the monorail track 10M-20M in advance.

[0055] The traction control module includes a turning deceleration unit, a downhill deceleration unit and a high-speed limit unit.

[0056] The turning deceleration unit is used for sending a signal to the traction control module when receiving a "turning" detection signal, and then controlling the VCU controller to perform drive control, including acceleration, deceleration, constant speed and braking working conditions.

[0057] The downhill deceleration unit is used for sending a signal to the traction control module when receiving a "downhill" detection signal, and then controlling the VCU controller to perform drive control, including acceleration, deceleration, constant speed and braking working conditions.

[0058] The high-speed limit unit is used for sending a signal to the traction control module when receiving a "high-speed" detection signal, and then controlling the VCU controller to perform drive control, including acceleration, deceleration, constant speed and braking working conditions.

[0059] ​In this embodiment, the reminding module of the visualization module gives voice and buzzer reminders 10-20M before approaching the "turning point", "overheight point", "climbing point" and "downhill point" on the monorail track. Not only can the background visualization clearly display, but also the traction system can accurately let the staff manually switch the speed.

[0060] Embodiment four, this embodiment is based on the explanation of embodiment one, for details, please refer to Figure 1 Figure 2 The traction control module further comprises a power drive system, a pantograph, a transformer, a traction inverter, a traction motor, a coupling, a gear box, an axle and a wheel.

[0061] The composition of the traction system AC traction control mainly includes the following components: current collection device, high-speed circuit breaker, traction inverter, traction motor, braking resistor;

[0062] The pantograph collects current from the monorail overhead line, and after passing through the high-speed circuit breaker, line contactor and ground detection device, 1500 VDC is sent to the MCM (traction motor control module) motor conversion module, and is converted into frequency and voltage adjustable three-phase AC power, which is supplied in parallel to the vehicle 4 AC squirrel cage asynchronous traction motors, realizing the speed regulation of the motor, completing the train traction and electric braking functions.

[0063] A traction system for a straddle-type monorail sightseeing vehicle further comprises a monitoring module for real-time monitoring of electrical and mechanical devices in the power braking detection module and the path monitoring system.

[0064] The monitoring module comprises a current output monitoring module and a fault module.

[0065] The current output monitoring module is used for current detection during DC and AC mode switching, and real-time monitoring of the voltage of the battery pack in the energy storage module.

[0066] The fault module is used for fault monitoring of the braking device, ATO device, electronic equipment and mechanical equipment, and real-time alarm processing when a fault is detected.

[0067] The fault module monitors the fault event, and determines whether the traction control module allows control of the switch control. The traction control module determines whether to allow control of the traction control module selection switch according to the fault event.

[0068] ​In the embodiment, the electrical devices, mechanical equipment, braking devices, ATO devices, electronic devices and mechanical equipment in the traction system are monitored by the current output monitoring module and the fault module, and when a fault is monitored, real-time alarm processing is performed to improve safety performance.

[0069] Embodiment five, this embodiment is based on the explanation of embodiment 1, specific, please refer to Figure 1 Figure 2 The traction control module includes a double braking unit, which can realize double braking function when the sightseeing vehicle is running downhill.

[0070] In the embodiment, the double braking unit in the traction control module realizes double braking function during the downhill running of the sightseeing vehicle, which facilitates rapid deceleration.

[0071] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0072] The above description is only the preferred embodiment of the present application, it should be pointed out that for the ordinary skilled in the art, without departing from the technical principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.​

Claims

1. A traction system for a straddle-type monorail sightseeing vehicle, characterized by: The power supply braking detection module, the path monitoring system, the monorail contact network and the wireless communication module are included. The power supply braking detection module includes an energy storage module and a traction control module, the energy storage module is used to provide direct current and input electric energy to the traction control module through a DC / DC converter; the DC / DC converter conversion circuit is connected between the energy storage module and the rectification inversion circuit, used to transform the direct current provided by the energy storage module or the direct current transmitted from the rectification inversion circuit; The energy storage module is connected with the power supply braking detection module, the power supply braking detection module is connected with the monorail contact network, the power supply braking detection module is used to change DC1500V to AC1500V; the power supply braking detection module includes a direct current DC mode and an alternating current AC mode; The power supply braking detection module includes a ramp conversion module, the ramp conversion module is used to identify the path of the slope section on the track during the operation of the monorail sightseeing vehicle, the path of the slope section is provided with three modes, a climbing mode, a flat slope mode and a downhill deceleration mode; the flat slope mode is used to adopt the direct current mode for traction power supply operation when the monorail sightseeing vehicle is on a flat slope or ≤15%≤36% climbing slope; the climbing mode is used to change the current from DC1500V to AC1500V for climbing when the monorail sightseeing vehicle is on a slope higher than 36%; the downhill deceleration mode is used to decelerate the speed of the traction to not more than 10Km / h during the downhill process; The traction control module includes a turning deceleration unit, a downhill deceleration unit and an overspeed limiting unit; The turning deceleration unit is used to send a signal to the traction control module when receiving a "turning" detection signal, and then control the VCU controller to drive control, including acceleration, deceleration, constant speed and braking working conditions; The downhill deceleration unit is used to send a signal to the traction control module when receiving a "downhill" detection signal, and then control the VCU controller to drive control, including acceleration, deceleration, constant speed and braking working conditions; The overspeed limiting unit is used to send a signal to the traction control module when receiving an "overspeed" detection signal, and then control the VCU controller to drive control, including acceleration, deceleration, constant speed and braking working conditions; The monitoring module is also included, which is used to monitor the electrical devices and mechanical devices in the power supply braking detection module and the path monitoring system in real time; The monitoring module includes a current output monitoring module and a fault module; The current output monitoring module is used to detect the current during the switching of the direct current mode and the alternating current mode, and includes real-time monitoring of the voltage of the battery pack in the energy storage module; The electric energy in the energy storage module is calculated and converted into the endurance mileage, and the endurance mileage is sent to the current output monitoring module; The fault module is used to monitor the faults of the braking device, the ATO device, the electronic equipment and the mechanical equipment, and real-time alarm processing is performed when the fault condition is monitored. When the fault module detects a fault event, it is determined whether the traction control module allows control of the switch control, and the traction control module determines whether to allow control of the closing or opening of the traction control module selection switch according to the fault event; The traction control module includes a double braking unit, which can realize double braking function when the sightseeing vehicle is running downhill; The power supply braking detection module monitors the power supply mode when the sightseeing vehicle is running normally, and determines whether it is a direct current mode power supply. If the power supply mode is a direct current mode, the direct current motor needs to be changed to an alternating current mode power supply during climbing, and the mechanical transmission is sent to the alternating current generator to output alternating current; Wherein, the inversion is the opposite current conversion process of rectification, which converts direct current into alternating current; When the inverter side, that is, the alternating current measurement, is connected to the power grid, it is called active inversion; When the inverter side, that is, the alternating current measurement, is directly connected to the load, it is called passive inversion; The inverter circuit can convert the direct current power supply into alternating current of any frequency and voltage under the action of the control circuit. When the direct current power supply is needed to supply power to the alternating current load, the opening and closing of the current switch are adjusted to change the frequency of the output alternating current by controlling the switching period.

2. A traction system for a straddle-type monorail sightseeing vehicle according to claim 1, characterized by: The path monitoring system includes a track detection module, a GPS module and a visualization module, and the track detection module and the GPS module are connected with a wireless communication module; The visualization module is used to visualize the sightseeing vehicle and the marks on the track in the navigation system of the vehicle-mounted operation control module through three-dimensional pictures during the whole monorail line The track detection module is used to detect and mark the "turning point", "high point", "climbing point" and "downhill point" on the track, and the visualization module is used to mark the visualization in the navigation system of the vehicle-mounted operation control module; The GPS module is used to display the high-precision radio navigation positioning position of the sightseeing vehicle in the navigation system of the vehicle-mounted operation control module as the main mark.

3. A traction system for a straddle-type monorail sightseeing vehicle according to claim 2, characterized in that: The visualization module includes a reminder module, and the reminder module includes a buzzer player and a voice player; The reminder module plays a voice or buzzer reminder 10M-20M before approaching the "turning point", "high point", "climbing point" and "downhill point" on the monorail track.

4. A traction system for a straddle-type monorail sightseeing vehicle according to claim 1, characterized by: The traction control module further includes an electric drive system, a pantograph, a transformer, a traction converter, a traction motor, a coupling, a gear box, an axle and a wheel.

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