WO2007045159A1

WO2007045159A1 - Ultracapacitor rapidly charging system for trolley bus

Info

Publication number: WO2007045159A1
Application number: PCT/CN2006/002722
Authority: WO
Inventors: Jie Chen; Jianxin Ma; Mingshan Liu; Weilong Yang; Jinfa Chen; Lin Huang; Shu Wang
Original assignee: Shanghai Jiaoda Shenzhou Vehicle Research & Development Co., Ltd.
Priority date: 2005-10-17
Filing date: 2006-10-17
Publication date: 2007-04-26
Also published as: CN1751910A

Abstract

An ultracapacitor rapidly charging system for trolley bus comprises a rapid charger, a pantograph provided between the power line and the rapid charger for on-off control the electronically connection between the rapid charger and the power line, a ultracapacitor set connected to the rapid charger for being charged, a pedal detecting module connected to a control module for detecting whether there is an action signal of the bus pedal and sending the signal to the control module, a sensor which is provided between the control module and the ultracapacitor for sensing the parameters of the ultracapacitor set, a control module connected to the input of the sensor for receiving the parameters of the ulracapacitor set. Each ultracapacitor of the ultracapacitor set corresponds to an execution unit and an auxiliary power unit. The execution unit can operate the ultracapacitor based on the judgment of the control unit. The pantograph of the invention can charge the ultracapacitor set with heavy current and the pantograph can retract when the charging process is over, so the bus can keep running in the running route.

Description

Supercapacitor fast charging system used on bus trams

The present application relates to a bus charging system, and more particularly to a supercapacitor fast charging system for use on a bus.

Background technique

The trolley bus is an environmentally friendly public transport vehicle with no emissions and low noise. However, since the power supply mode of the trolley bus is completed by the overhead power supply line above the operation route, the "visual pollution", "poor mobility" and "high maintenance cost" of the overhead power supply line are brought about, and the like. . According to the literature search, the Chinese patent number is: 99230060. 6. The trolley bus disclosed in this patent uses a battery as an auxiliary power source, also called an auxiliary source trolleybus. It is driven by a power supply line on a section of an overhead power supply line. While driving, the vehicle battery is charged by the power contact line power source, and the road section of the overhead line without the overhead power supply is driven by the battery power source. This method can only solve problems such as "visual pollution" and "poor mobility" in the running route. Summary of the invention

The present application provides a supercapacitor fast charging system for use on a bus on a bus, which is extended by a rechargeable pantograph at a bus charging station when the bus stops at the bus stop and when the passenger gets on and off the bus. It is connected with the charging power supply line of the charging station, and charges and supplements the electric energy to the super capacitor group with a large current. After the charging is completed, the telescopic pantograph is retracted, thereby keeping the bus tram continuous in the entire running line. In addition, the charging system provides an auxiliary power source to charge a single supercapacitor during vehicle operation.

The present invention is achieved by the following technical solutions. The present invention mainly includes: A supercapacitor fast charging system for use on a bus, comprising a governor, an electric motor, and a pedal detecting module, wherein the charging system further comprises a fast charger; a pantograph, disposed between the power supply line and the quick charger, configured to switch electrically control the electrical connection between the fast charger and the power supply line; the super capacitor group, and the quick charger Connecting, receiving charging; a pedal detecting module, connected to the control module, for detecting whether the bus pedal has an action signal, and transmitting the signal to the control module; the sensor is connected between the control module and the super capacitor group, Detecting parameters of the supercapacitor group; a control module, connected to the input end of the sensor, receiving parameters of the supercapacitor group; a plurality of execution units and a plurality of auxiliary power supply units, each supercapacitor corresponding to the supercapacitor group An execution unit and an auxiliary power unit, according to the judgment of the control module Broken by the execution order

1

Confirmation The element implements its operation on the supercapacitor.

Preferably, when the control module determines that the temperature of the super capacitor group is higher than a set value, the execution unit lowers the temperature of the super capacitor to which it is connected.

Preferably, when the control module determines that the voltage or current of the super capacitor group is less than a set value, and there is no pedal action signal, the execution unit is connected to the super capacitor through the auxiliary power unit. Charging.

Preferably, the control module is further connected to the quick charger, and controls the charging time according to the requirements of the control module.

Preferably, the bus further includes a pantograph detecting module connected between the pantograph and the governor for detecting whether the pantograph and the power supply line are in contact with each other. In the state of charge, the pantograph detection module causes the motor to be in a safe locked state by the speed control module.

Preferably, the charging system further includes a display module connected to the control module for displaying parameters of the super capacitor group.

Preferably, the detection signal of the pedal detecting module includes whether there is an accelerator pedal signal or a brake pedal signal. Preferably, the pantograph is docked with the power supply line during charging, and can be retracted and retracted after the charging is completed. Among them, the governor and the motor have two different combinations: Combination 1 is a DC chopper governor and a DC motor, and combination 2 is an AC variable frequency governor and an AC motor. The super capacitor bank has a charging current of 50~400A and an operating current of 0~300A. The amount of telescopic pantograph expansion is (Γ3000匪.

The invention has substantial features and significant advancements. The invention provides a super-capacitor fast charging system used on a bus, and when the bus stops at the bus and the passenger gets on and off, the retractable pantograph extends at the bus charging station and the charging power supply line of the charging station Docking, charging and replenishing the supercapacitor group with a large current. After the charging is completed, the telescopic pantograph is retracted, so that the bus is kept continuously throughout the running line. The invention can be applied to cities, tourist areas, large venues and communities, etc., and is an environmentally-friendly and energy-saving green bus.

DRAWINGS

The above and other objects, features and advantages of the present invention will become apparent from the <RTIgt; Figure 1 is a block diagram showing the structure of the system of the present invention. detailed description

As shown in FIG. 1, the super capacitor charging system for a bus of the present invention is an improvement made on the basis of a conventional charging electric vehicle, and the conventional battery charging is changed to a large super capacitor group charging, and the charging is super. Capacitors are added to other related components.

The invention mainly comprises: a super capacitor group 11, a governor 12, an electric motor 13, a quick charger 14, a pantograph 15, a display module 16, a control module 17, and a pedal detecting unit 8.

The pantograph 15 is disposed between the power supply line and the quick charger 14, and the charging circuit is turned on under certain conditions. The pantograph 15, the fast charger 14 constitutes a main charging circuit of the super capacitor group 11.

In addition to the above main charging circuit, the charging system further includes a sensor 63 for detecting parameters such as temperature, current and voltage of the ultracapacitor group 11 in real time, and sending the relevant parameters to the control module 17 for display by the display module 16. .

The control module 17 compares the parameters provided by the sensor 63 with the set parameters. If the temperature of the current supercapacitor bank 11 exceeds the set value, the control execution unit 62 performs a temperature lowering process.

After the super capacitor group 11 is operated for a period of time, the control module 17 detects that the current current or voltage of a super capacitor in the super capacitor group 11 does not reach a predetermined value. At this time, if the vehicle is still under acceleration or braking, this Charging will damage the quick charger 14 and therefore cannot be assisted. Only when the pedal detection module 18 does not detect any pedal signals, i.e., the surface vehicle is in a stopped or free-sliding state, the control module 17 causes the auxiliary power unit 61 to supplement the super capacitor by the execution unit 62. Since each supercapacitor in the supercapacitor bank 11 corresponds to one execution unit and one auxiliary power supply unit, the control module 17 can control the execution unit 62 to perform a single supercapacitor temperature cooling or charging to ensure that each supercapacitor of the supercapacitor bank 11 is Keep the set working normally. Generally, the auxiliary power unit 61 usually uses a 24V DC power supply, and the super capacitor group 11 has a super capacitor number of 15.

In addition, in order to ensure the charging safety of the main charging circuit, the control of the quick charger 14 can also be realized by the control module 17. '

The operation of the supercapacitor charging system for a bus of the present invention will be described in detail below.

There are two situations in the main charging circuit: 1. When the bus is at the bus terminal, it is in the non-driving state, and is charged by the main charging circuit. 2. When the bus stops, the passenger gets on and off, it is scalable. The pantograph 15 is extended to dock with the charging power supply line of the bus charging station, and is charged to the super capacitor group 11 by the large electric power. After the charging is completed, the retractable pantograph 15 is retracted; When the bus is in the running or braking state, and neither the accelerator pedal nor the brake pedal is actuated, that is, the pedal detecting module 18 does not detect the pedaling action signal. At this time, the sensor 63 detects that the charging temperature of the super capacitor group 11 is too high. Cooling is performed by the control module 17 through the execution unit 62 to prevent the supercapacitor group from continuing to be charged and being broken down. Since the super capacitor group 11 starts to discharge after the charging is completed, when the vehicle travels for a certain period of time, the sensor 63 detects that the voltage or current of a single super capacitor in the super capacitor group 11 does not reach the set value, and the control module 17 controls the auxiliary unit through the execution unit 62. The power supply unit 61 charges the single super capacitor.

In addition, in order to ensure the safety and reliability of the main charging circuit, the charging and discharging time of the quick charger 14 can be controlled by the control module 17 as required.

The operation of the governor 12 will be briefly described below with reference to the drawings.

The governor 12 includes a speed control module 21, a regenerative brake control module 22, and a current feedback module 23, wherein the speed control module 21 receives the power provided by the super capacitor group 11 for operation, and further, the speed control module 21 is also subjected to the pedal detection module. 18 controls. The working process is specifically described below - when the pedal is actuated, the pedal detecting module 18 transmits a signal to the speed control module 21, which contains a high power device (IGBT), by controlling the turning on and off of the device, and finally The input voltage change transmitted to the motor 13 is changed, and the motor 13 drives the fixed ratio gear differential 19 to rotate.

At the same time, the current feedback module 23 feeds back the speed of the motor 13 to the speed control module 21 in the form of a current, which acts as a constant current to make the vehicle run more smoothly.

In the braking state, the motor 13 becomes a generator, and the generated voltage is sent to the speed control module 21 by the regenerative braking control module 22, adjusted by the IGBT, adjusted, and sent to the ultracapacitor group 11 to The super capacitor group 11 is recycled.

The pantograph detecting module 51 is for detecting the position of the pantograph 15, and if the pantograph 15 is in contact with the power supply line, the pantograph detecting module 51 causes the motor 3 to be safely locked by the speed control module 21. State, to prevent the driver from mishandling, dangerous.

The supercapacitor supercapacitor governor 12 and the motor 13 have two different combinations. The combination 1 is a DC chopper governor and a DC motor, and the combination 2 is an AC variable frequency governor and an AC motor. The super capacitor group 11 has a charging current of 50 400 A and an operating current of (Γ300 Α. Retractable pantograph 15 expansion and contraction amount is 0~3000

Claims

Rights request

A supercapacitor fast charging system for use on a bus, comprising a governor, an electric motor, and a pedal detecting module, wherein the charging system further comprises: a fast charger;

a pantograph, disposed between the power supply line and the fast charger, for controlling the electrical connection between the fast charger and the power contact line;

a super capacitor group, connected to the quick charger, and receiving charging;

a pedal detecting module, connected to the control module, configured to detect whether the bus pedal has an action signal, and transmit the signal to the control module;

a sensor, connected between the control module and the super capacitor group, for detecting parameters of the super capacitor group;

a control module, connected to the input end of the sensor, receiving parameters of the super capacitor group; a plurality of execution units and a plurality of auxiliary power units, wherein each super capacitor in the super capacitor group corresponds to an execution unit and an auxiliary power unit, According to the judgment of the control module, the operation is performed by the execution unit on the super capacitor.

2. The supercapacitor fast charging system for use on a bus of claim 1, wherein the execution unit lowers the connection when the control module determines that the temperature of the supercapacitor group is higher than a set value. The temperature of the super capacitor.

3. The supercapacitor fast charging system for use on a bus of claim 1 , wherein when the control module determines that the voltage or current of the super capacitor group is less than a set value and there is no pedal action signal The execution unit charges the super capacitor connected thereto through the auxiliary power supply unit.

4. The supercapacitor fast charging system for use on a bus of claim 2 or 3, wherein the control module is further connected to the quick charger and controls the charging time according to the requirements of the control module.

5. The supercapacitor quick charging system for use on a bus of claim 4, wherein the bus further comprises a pantograph detecting module coupled between the pantograph and the governor, A charging state for detecting whether the pantograph and the power supply line are in contact, and if in a charging state, the pantograph detecting module causes the motor to be in a safe locked state by the speed control module.

The supercapacitor fast charging system for use on a bus of claim 5, wherein the charging system further comprises a display module connected to the control module for displaying parameters of the super capacitor group .

7. The supercapacitor fast charging system for use on a bus of claim 6, wherein the detection signal of the pedal detection module includes an accelerator pedal signal or a brake pedal signal.

8. The supercapacitor quick charging system for use on a bus of claim 7, wherein the pantograph is docked with the power supply line during charging, and is retractable and retractable after charging is completed.