TW487665B - Small-sized electric vehicle having electric assisting function - Google Patents

Abstract

To provide a small-sized vehicle having an electric assistance function which does not immediately cause serious hazard with regard to running of the vehicle even when a trouble is caused in communication function between a vehicle controller and a battery management controller. A small-sized vehicle having an electric assistance function having a vehicle controller 104 for detecting manual force and carrying out running control of the vehicle by driving a motor by a predetermined assistance rate in accordance with the detected human force and a battery management controller l00c for carrying out administration and control of a battery state by monitoring the battery state, in which communication controlling means for carrying out transmittance and reception of information in two directions or a single direction by predetermined communication protocol are provided to respectives of the vehicle controller 101a and the battery management controller l00c, the two communication controlling means 101a are provided with communication determining portions for determining presence or absence of abnormality in communication and the vehicle controller 101a is provided with electricity conduction controlling means 101a for carrying out electricity conduction control to the motor 106 based on battery information detected by the side of the battery management controller l00c when communication is normal and carrying out electricity conduction control to the motor 106 based on a set value set to the side of the vehicle controller 101a when communication is abnormal.

Description

Printed by Consumer Affairs Co., Ltd. of the Intellectual Property Office of the Ministry of Economic Affairs A7, Description of Invention (2) Strictly consider the discharge state of the pediatric battery as the battery can be set to life, I take a large discharge current setting, control of the discharge stop processing, etc. are borrowed. The vehicles / hearts, which are obtained from the management and control of the two pools of the 4M π soft π children's pool side, such as σΛ, are sent to the fine line control by the communication function. "The _ with the battery state [the problem to be solved by the invention], but as mentioned above, the sharing function can be reduced _ Cheng Xiao Er's negative control of the respective control device 'for the entire vehicle, can check the performance of the r Or the function, on the contrary, you will worry about the following problems. That is, the elbow is complicatedly loaded with the above-mentioned function sharing. 7 The clothing manufacturing loan communication agencies are connected to each other and communicate their respective letters: When a small car with electric assist function turns around, 'the communication is abnormal due to the impact of vehicle vibration or disturbance. For example, from the top = the battery management controller stops the information on the car's health device. If it is not good, the battery will be a deep problem. The present invention is achieved in view of the above-mentioned facts, and provides a kind of communication function between the vehicle control and the official controller of the pool dump, even if the communication function is impeded, it will not immediately drive the vehicle. As a problem, a small vehicle with an electric assist function is a major problem. [Means to Solve the Problem] The invention in the first scope of the patent application includes the vehicle control mode. A certain auxiliary ratio driving motor to match the detected manpower to implement vehicle control; and a battery official controller, which monitors the battery status to implement the battery status of the original paper scale thorn + Guan Jiaxian (CNS) A4 specification ^ 10 X 297 public

A7 V. Description of the Invention (Printed and managed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, characterized by: The communication control mechanism is set in the vehicle controller and the battery management controller respectively, and is used to pre-determine the communication protocol in the Send and receive information in two directions or in one direction, and the communication abnormality judgment unit is provided in the two communication control mechanisms to determine whether there is a communication abnormality. The vehicle controller also includes a power-on control mechanism. The battery management controller detects the battery information as the reference and implements the energization control to the motor, and performs the energization control of the upward motor based on the setting value set on the vehicle controller on the other day of communication. The two inventions are the first in the scope of patent application. Among them, the above-mentioned power-on control mechanism is at least from the communication day when the communication abnormality occurs, and the communication communication from the battery management controller is just before the communication abnormality occurs. The battery information is used as a reference to implement the power-on system to the above motors. The invention in the third scope of the patent application is a patent application Scope item i, among which: The above-mentioned power-on control system is recognized as “L” when the communication is stopped for a certain period of time, until it is recognized that the communication abnormality is handled when the communication is normal. [Effects of the invention] Application for the first scope of the invention Since the battery information on the control state side is used as the reference when the communication is normal, the motor is controlled toward the motor, and when the communication is abnormal, it is set on the vehicle controller side. When the communication is normal, the narrative is often controlled or communicated.

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High-precision battery information from the battery management controller side can be used as a reference to implement high-precision power-on control, and when the power-on abnormality is based on the battery information from the battery management control, the accuracy is slightly reduced. Minimal driving control may be required to prevent excessive battery discharge and deep discharge. According to the invention in item 2 of the scope of patent application, since the communication abnormality occurred at least a certain time since the communication abnormality occurred, the battery information from the battery management controller immediately before the communication abnormality occurred was known as the reference to the motor. The power-on control is, for example, a simple control to the extent that driving to a service station is possible. When the invention according to item 3 of the scope of patent application continues to communicate with LV for a certain period of time, it will be recognized as a communication abnormality until it is recognized that the communication abnormality is implemented by "L." Convenient 'for example, the instantaneous indication disappears' or the sense of discontinuity by controlling the replacement, the instantaneous stop of assistance, etc., or the interruption of communication is judged to be the failure of the communication disconnection, which can prevent, for example, the S auxiliary from intermittently causing a sense of inactivity Keyin et al. [Embodiments of the invention] Figures 1 to 7 are diagrams illustrating the electric assist bicycle according to the embodiment of the present invention. Fig. 1 is a side view of the electric assist bicycle. It is a block diagram of the driving control device and the battery box. Fig. 3 is a diagram of data ^, Fig. 4 is a table for transmitting and receiving data, and Figs. 5 to 5 are flowcharts for explaining operations. Fig. 1 1 series uses charger 112 as a non-vehicle mount

This paper size applies the Chinese National Standard (CNS) A4 specification (210 x 297 invention description (5), and the battery device is a small car with electric auxiliary function on the car :: electric auxiliary bicycle. The frame of the electric auxiliary bicycle 丨2 contains W tube 3, from which the front tube extends obliquely below the rear of the car, the lower tube 4 dagger = seat tube 5 which extends slightly upward from the rear end of the lower tube 4, from the top: the lower tube from 4: the rear end is slightly rearward Horizontally extending left and right—supporting the chain “left and right of the rear end of the hengliang pillar 6 and the upper end of the seat tube 5” —to the seat pillar support 7 and the frame connecting the front tube 3 and the seat tube 5 horizontally The rod η. The front tube 3 is supported by a frame that can be rotated left and right. The lower end of the front fork 8 is supported by the front wheel 9 axis, and the upper end is fixed by the steering handle. Furthermore, the upper = the upper end of the tube 5. The saddle 12 is attached. The rear end of the chain post 6 is attached to the rear wheel 13 axle support f. The lower end of the frame 2 is equipped with a pedal for inputting a pedal 16b through a crank f 16a attached to a crank_end protrusion. The pedaling force (manpower) is proportional to the output of the manpower from the built-in electric motor Power Heli power supply device 15. The output from this power supply device 15 is relayed through the chain 3: the rear wheel 1 3. The battery box 1 which becomes the power source such as the above-mentioned moving motor is along the back of the seat tube 5 'and It is sandwiched between the left and right seat cushion pillar tubes 7, 7, and can be installed and disassembled facing the vehicle body freely. And the above battery box! It is a charging job, and the charging of the charger ι 2 is at this charging port. The plug 丨 2 丨 can be connected freely. As shown in Figure 2, the above battery box 100 contains a rechargeable battery 100b, a battery management device, a memory section I00g that stores various information and data, and various inputs and outputs. I / F (interface) 100d ~ 100f, through input

& Printed by the Consumers' Cooperative of the Ministry of Economic Affairs of the Ministry of Economic Affairs, 100d) Connected to the external on-off transfer switch 102, and connected to the external battery-side indicating device 103 via the instruction interface 100e. The above-mentioned changeover switch 102 is arranged on the outer surface of the battery box 100, and functions as a conversion mechanism to change the battery management controller 100c to a normal control mode or a failure judgment mode. The battery-side indicator 10 includes, for example, seven indicator lights (LEDs, light-emitting diodes) 103a, and the indicator lights 2 indicate various types of information, and are adjacent to the conversion provided on the outer surface of the battery box 100. Switch 102. The battery 100b is a power source for the electric motor 106, and most of the single batteries (nickel-chromium, nickel-hydrogen alloy batteries, etc.) are connected in series. Moreover, as shown in FIG. 3, the battery management controller 100C constantly monitors the status of the battery 100b, performs the type identification of the battery 100b, and calculates the remaining battery capacity to calculate the maximum discharge current value to protect the battery. Discharge stop judgment, discharge prohibition judgment, diagnosis information processing for failure judgment, various other arithmetic processing. 101 is a vehicle driving control device installed near the power supply device 15 described above. The device 15 includes a vehicle controller i0ia that performs various calculation processes, a memory section for storing various information data, and various interfaces for inputting and outputting 101c ~ loig. Various sensors such as current sensors, torque sensors, etc. 104 through the sensing interface 1 01 C, the main switch 丨 05 through the input interface 丨 〇 d, the electric motor 106 through the output interface 101e, and external The vehicle-side indicators 107 are respectively connected through the instruction interface 10f. The above-mentioned vehicle-side indicator 107 includes, for example, three indicator lights (LEDs) 107a, and various information is displayed by the instruction graphics of the indicator lights 107a.

This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 public love) ----- r —--------- ^ (Please read the precautions on the back before filling this page) Invention Explanation (7) In the above-mentioned steering handle 10. The view of the vehicle controller is shown in FIG. 3, and the battery image is executed based on various information such as battery status, battery capacity, and maximum discharge value from the battery management controller 100c. Discrimination processing, auxiliary current command value calculation processing, battery current control processing, discharge stop processing, battery capacity calculation processing, diagnostic information processing, and other window processing. π. Furthermore, the vehicle controller 101a is configured to memorize the above-mentioned various calculation processing results or the failure judgment information on the side of the vehicle driving control device 101 in the failure judgment, and further, the The fault judgment information is memorized through the loopback line, and when the changeover switch 102 is switched to the fault judgment $ type side, the fault judgment information stored in the memory section 10 is displayed on the vehicle-side indicator 107. In addition, the above-mentioned car auxiliary controller 101a and the battery management controller 100c can communicate with each other through the 101g, 100f of the L "plane and the k-line a, which can communicate with each other. As shown in FIG. 4, the battery management controller i00c side The battery management information, such as the battery residual capacity, the maximum discharge current value, the battery type, the discharge stop signal, the discharge prohibition signal, the diagnostic information transmission instruction signal, and other information request signals sent to the vehicle controller 101a side, the vehicle controller # Breaking information and other information are sent to the battery management controller 丨 〇c. Next, the operation of the vehicle controller 丨 〇la and the battery management controller 00c will be described along the flowcharts in FIGS. 5-7. First, in the vehicle control器 1 〇1 a shows the fifth diagram of the main flow, among which various input processing is performed, such as a twist on a vehicle controller 丨 〇 丨 a 4 ^ 7665 A7

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs & Sensing status' Various speed sensors, voltage sensors, and other sensors 104k output of various human torque, vehicle speed, battery voltage and other input processing ( Step S4) 'Further, a failure judgment process is performed (step y). The above-mentioned communication processing is as shown in FIG. 6. First, the transmission and reception processing is performed (step A0). After receiving, various errors such as parity errors and total amount check errors are detected. ^ ## Determine whether the communication status is normal (step A1). When normal The timer for calculating the 7-wire communication time is reset (step A2). The maximum discharge current value, battery residual capacity value, discharge stop information, discharge prohibition information, etc. are updated to the received data from the battery management controller. 〇〇c side (Steps a3 to a6). In the above step A1, when the communication status is judged to be abnormal, the abnormal judgment is to start the communication disconnection time calculation timer at the first time (steps A7 and A8). Between the occurrence of the communication abnormality and the elapse of a certain period of time, that is, between the negative determination in step A9, the information from the battery management controller ⑺ ... retains the data before the occurrence of the communication abnormality. When the communication disconnection time has passed +, a communication failure is determined and the following processing is performed (step A10). First, based on the battery voltage detected by the vehicle controller 1013, etc., a simple battery state detection is performed. Then, based on the state of the battery detected by the simple battery state detection, the maximum discharged battery is calculated, the auxiliary end conditions are set, and the remaining battery capacity indication data is set. The above-mentioned simple battery state detection is as shown in FIG. 2 from the battery 100 through the wiring cable b to detect the electrical waste of the current input to the vehicle controller 10la, and the estimated battery discharge current from the actual current of the motor, etc. Simple calculation of battery residual capacity. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 public love) '" ----- -12-Μ ----- ^ --- ^ --------- ^ (Please read the precautions on the back before filling out this page) A7 B7 V. Invention Description (9) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the calculation of taking the current from the above-mentioned large discharge battery is based on the state of the battery residue. It is also possible to set a J value, and it is also preferable to use a predetermined fixed value. It may be used as a final value before a communication abnormality. The setting of the above-mentioned auxiliary termination conditions is specifically as follows. In contrast to receiving the discharge stop or discharge prohibition signal from the battery management controller as the auxiliary end condition in [Zhengxin ', when the communication is abnormal, then check: I pool's evil' is specifically the battery's current-voltage characteristics When the curve is lower than the median value shown in the figure, the auxiliary ratio is gradually reduced, and the auxiliary ratio is gradually set to set the auxiliary stop condition. The calculation process of the above auxiliary current value is as shown in Fig. 7. It is judged whether or not the assistance is above or below the auxiliary starting voltage of 疋 (step is called, when assisting, it is controlled by human torque, vehicle speed, and battery tube control). The battery voltage, etc. received by the instrument is the auxiliary electric value required for the benchmark calculation (step B2). Moreover, the auxiliary current limiting process is performed to limit the calculated auxiliary current value to the maximum discharge electric hunger received from the above battery management controller. Below the value (step B3) 'Next, it is judged whether or not the auxiliary end condition is satisfied (step B4)' The auxiliary stop processing is performed at the time of joining (step B5). In the communication processing of FIG. 6, it is determined that the communication is disconnected. ' (Abnormal), the above-mentioned auxiliary current value calculation processing, which is read from the various sensors on the vehicle controller side to read the battery private [, battery current value, according to step A1 in Figure 6 Auxiliary current limit processing for the large discharge power starvation value 'In accordance with the auxiliary end condition set in the step of FIG. 6, the execution of the auxiliary end condition meets the judgment and the like. In this way, because the vehicle controller 10a and the battery management control 8 minus (please read the precautions on the back before filling this page);

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Information communication is performed between the state 100c, and the battery state data such as the battery voltage and the maximum discharge current value, which are requested by the battery management controller 100c, are read, and the vehicle controller 10 is obtained; The current command value and the auxiliary current limit processing can greatly improve the accuracy of the energization control to the motor. When printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and the communication abnormality (communication disconnection) occurs, the vehicle controller will be implemented. The calculation of the auxiliary current command value based on the battery voltage detected by the la-side sensor 104 is based on the auxiliary current limitation processing based on the last maximum discharge current value before the communication abnormality is about to occur. Compared with the received battery status data as a reference, the accuracy is slightly reduced, and minimal driving control may be required to prevent excessive battery discharge and deep discharge from occurring. Furthermore, the judgment of the occurrence of communication abnormality is made since the initial communication was made. When Wu occurs for a certain period of time, when the error continues, it is determined that a communication abnormality has occurred, which can prevent the inconvenience of communication abnormality due to instantaneous disconnection, such as the instantaneous finger does not disappear, or the discontinuity of control conversion, which helps Instantaneous stop, etc. ”or the inconvenience of communication disconnection due to communication discontinuities, such as the inflexibility of the auxiliary interruption, and the invisible display when displayed. Brief Description of the Drawings Fig. 1 is a side view of an electric assist bicycle according to an embodiment of the present invention. Fig. 2 is a block diagram showing a vehicle controller and a battery management controller in the above embodiment. Figure 3 is a data flow chart of the two controllers. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 public love) ------------- ^ ----- ^ --- ^ ------- -^ (Please read the notes on the back before filling this page) 14 487665 A7 B7_ V. Description of the invention (11) Figure 4 shows the data content of the two controllers. Fig. 5 is a flowchart for explaining the operation of the controller. Fig. 6 is a flowchart for explaining the operation of the controller. Fig. 7 is a flowchart for explaining the operation of the controller. FIG. 8 is a current-voltage characteristic diagram for explaining the operation of the controller. ----------- ka-loaded · ----: .- Order --------- AWI (Please read the notes on the back before filling this page) Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau's Consumer Cooperatives 15 This paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) 487665 A7 B7 V. Description of the invention (12) 'The component numbers are printed in accordance with the Ministry of Economic Affairs ’Intellectual Property Bureau's Consumer Cooperatives 1 ... Electric assist bicycle 2 ... Frame 3 ... Front tube 4 ... Lower tube 5 ... Seat tube 6 ... Chain pillar 7 ... Seat pillar tube 8 ... Fork 9 ... Front wheel 10 ... Steering handle 12 ··· Saddle 13 ... Rear wheel 15 ... Power equipment (power unit) 16 ... Crankshaft 16a ... Crank arm 16b ... Pedal 100 ... Battery box 100a ... Charging port 100b ... Battery 100c ... Battery management controller 100d ... Input interface 100e ... Instruction interface 100f ... Communication interface 100g ... Memory section 101 ... Vehicle driving control device 101a ... Vehicle controller 101b ... Memory section 10lc ... Sensor interface 101d ... Input interface 101e ... Output interface 101f ... Instruction interface 101g ... Instruction interface 102 ... Transfer switch 103 ... Battery-side instruction device 103a ... indicator 104 ... sensor 105 ... main switch 106 ... electric motor 107 ... vehicle-side indicator 107a ... indicator 112 ... charger 121 ... charging Plug (Please read the precautions on the back before filling out this page) 16 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

TO / OOJ 6. Scope of patent application Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ^ A small vehicle with electric auxiliary functions, including: Vehicle control descent, driven by the detected manpower and assisted by the detected manpower to determine the auxiliary ratio The person who controls the running of the vehicle with the motor; and the battery management controller, which is used to monitor the state of the battery for battery-like evil management and control, and is characterized in that the communication control mechanism is provided in the vehicle controller and the power management respectively. The controller 'is used to send and receive information in two directions and one direction by a predetermined communication protocol, and the communication abnormality determination unit sets up the two communication control mechanisms described above to determine whether there is a communication abnormality. A functional small vehicle has a power-on control mechanism on the vehicle control, which is used to power the aforementioned motor when the communication is normal based on the battery information detected on the electric two-tube controller side. The setting value of the controller on the vehicle controller side is used to control the energization to the motor. 2 · If the scope of patent application is the first! The item is attached with electricity __ ", among which: the above-mentioned power-on control mechanism of Qianchao shall communicate at least at the time of communication when the communication is abnormal, and send it from the above-mentioned battery management control battery. The control of energization towards the base shall be used as a reference. Poor 3. If a vehicle is attached to item 1 or 2 of the scope of patent application, where: The above-mentioned energization control mechanism with electric auxiliary function is recognized as a communication abnormality after communication stops for a certain period of time, and 'Until it is recognized as a communication anomaly: Handle when the communication is normal. Your paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 public hair pool or small device — — — — — — — — —-I — — I — I 1 — — — — — — — (Please read the notes on the back before filling out this page) 17