CN114859865A

CN114859865A - Detection device for electric power-assisted vehicle controller

Info

Publication number: CN114859865A
Application number: CN202210485313.5A
Authority: CN
Inventors: 胡翔; 孙敏
Original assignee: Nanjing Dmhc Science&technology Co ltd
Current assignee: Nanjing Dmhc Science&technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-05

Abstract

The utility model provides an electric power assist vehicle controller detection device, belongs to electron technical field. Electric bicycle controller detection device includes: the device comprises a detection main module, a current detection module and a control processing module; the first input end of the detection main module is used for being connected with equipment to be detected, the first output end and the second output end of the detection main module are respectively connected with the first input end of the current detection module and the second input end of the current detection module, and the first output end, the second output end and the third output end of the current detection module are respectively connected with the first input end, the second input end and the third input end of the control processing module; the first control end of the control processing module is connected with the second input end of the detection main module. The effect of improving the efficiency and reliability of the detection controller can be achieved.

Description

Detection device for electric power-assisted vehicle controller

Technical Field

The application relates to the technical field of electronics, particularly, relate to an electric bicycle controller detection device.

Background

With the development of science and technology, electric vehicles such as electric power-assisted vehicles have become popular, and great convenience is brought to people's trips. The electric power-assisted vehicle is provided with a motor, a controller, a battery, an instrument, a sensor and other equipment to ensure the normal work of the electric power-assisted vehicle. The controller is an important device for controlling parameters such as the speed of the electric power-assisted vehicle.

In the related art, at the stage of manufacturing and the like of the controller, it is necessary to detect the performance of the controller to ensure that it can normally operate in the drive system mounted to the electric power assisted vehicle. Generally, the controller is usually manually detected by a technician, such as detecting parameters of standby current, load current, etc. of the controller.

However, manual detection is inefficient and is inevitable. Therefore, the scheme has the problems of low detection efficiency and poor detection reliability.

Disclosure of Invention

An object of the application is to provide an electric power assist vehicle controller detection device, can reach the effect that improves the efficiency and the reliability of detecting the controller.

The embodiment of the application is realized as follows:

in a first aspect of embodiments of the present application, there is provided an electric power assisted vehicle controller detection device, including: the device comprises a detection main module, a current detection module and a control processing module;

the first input end of the detection main module is used for being connected with equipment to be detected, the first output end of the detection main module is connected with the first input end of the current detection module, the second output end of the detection main module is connected with the second input end of the current detection module, and the first output end, the second output end and the third output end of the current detection module are respectively connected with the first input end, the second input end and the third input end of the control processing module;

the first control end of the control processing module is connected with the second input end of the detection main module, and the third input end of the detection main module and the power supply end of the control processing module are respectively used for inputting voltage;

the detection main module is used for respectively collecting currents of a first collection point and a second collection point and respectively outputting the currents of the first collection point and the second collection point to a first input end and a second input end of the current detection module;

the current detection module is used for outputting a first voltage or a second voltage to the control processing module through a first output end or a second output end of the current detection module according to the current output by the detection main module to the first input end of the current detection module, and outputting a third voltage to the control processing module through a third output end of the current detection module according to the current output by the detection main module to the second input end of the current detection module;

the control processing module is used for outputting a conducting voltage to a second input end of the detection main module through a first output end of the control processing module, and the conducting voltage is used for triggering the detection main module to switch from collecting the current of the first collecting point to collecting the current of the second collecting point.

Optionally, the second control end of the control processing module is used for connecting the device to be detected;

the control processing module is used for outputting a first electric signal according to the first voltage, outputting a second electric signal according to the second voltage, and outputting a third electric signal according to the third voltage, wherein the first electric signal is used for triggering the equipment to be detected to switch from a standby state to a startup no-load state, the second electric signal is used for triggering the equipment to be detected to switch from the startup no-load state to a startup loaded state, and the third electric signal is used for triggering the equipment to be detected to switch from the startup loaded state to the standby state.

Optionally, the detection main module includes a field effect transistor, a first resistor, a second resistor, and a turn-on circuit;

the drain electrode of the field effect transistor is respectively connected with the first end of the first resistor and the first input end of the current detection module, the drain electrode of the field effect transistor is also used for connecting the equipment to be detected, the source electrode of the field effect transistor is respectively connected with the second end of the first resistor, the first end of the second resistor, the first end of the conduction circuit and the second input end of the current detection module, the grid electrode of the field effect transistor is connected with the second end of the conduction circuit, and the second end of the second resistor is connected with the third end of the conduction circuit;

the third end of the conduction circuit is used for inputting voltage, and the fourth end of the conduction circuit is connected with the first control end of the control processing module;

the second end of the second resistor is grounded;

and the field effect tube is conducted under the condition that the conducting circuit is conducted so as to short circuit the first resistor.

Optionally, the conduction circuit includes a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first triode, a second triode, a third triode, and a fourth triode;

the first end of the third resistor is connected with the source electrode of the field effect transistor, the first end of the fourth resistor is connected with the grid electrode of the field effect transistor, the second end of the fourth resistor is respectively connected with the second end of the third resistor, the emitting electrode of the first triode and the emitting electrode of the second triode, and the collector electrode of the first triode is respectively connected with the second end of the second resistor, the emitting electrode of the third triode and the base electrode of the first triode;

the base electrode of the second triode is respectively connected with the base electrode of the first triode and the collector electrode of the fourth triode;

the base of the third triode is connected with the first control end of the control processing module, the collector of the third triode is connected with the base of the fourth triode and the first end of the sixth resistor through the fifth resistor, the second end of the sixth resistor is connected with the emitter of the fourth triode and the collector of the second triode, and the second end of the sixth resistor is used for inputting voltage.

Optionally, the current detection module comprises: the power-off static current detection module, the power-on no-load current detection module and the load current detection module;

the input end of the shutdown quiescent current detection module and the input end of the startup no-load current detection module are both connected with the first output end of the detection main module, the input end of the load current detection module is connected with the second output end of the detection main module, and the output end of the shutdown quiescent current detection module, the output end of the startup no-load current detection module and the output end of the load current detection module are respectively connected with the first input end, the second input end and the third input end of the control processing module;

the detection main module is used for collecting a first current of a first sampling point of the device to be detected and outputting the first current to the input end of the shutdown quiescent current detection module, collecting a second current of the first sampling point of the device to be detected and outputting the second current to the input end of the startup no-load current detection module, collecting a third current of the second sampling point of the device to be detected and outputting the third current to the input end of the load current detection module;

the shutdown quiescent current detection module is used for outputting the first voltage according to the first current; the startup no-load current detection module is used for outputting the second voltage according to the second current; the load current detection module is used for outputting the third voltage according to the third current.

Optionally, the shutdown quiescent current detection module includes a first gain resistor, a seventh resistor, a first capacitor, and a first amplifying device;

a first end of the seventh resistor is connected to the first output end of the detection main module, a second end of the seventh resistor is connected to the first end of the first amplifying device and the first electrode plate of the first capacitor, respectively, a second electrode plate of the first capacitor is connected to the second end of the first amplifying device, a third end of the first amplifying device is connected to the fourth end of the first amplifying device through the first gain resistor, and a fifth end of the first amplifying device is connected to the first input end of the control processing module;

the sixth end and the seventh end of the first amplifying device are respectively used for inputting working voltage;

the shutdown quiescent current detection module further comprises a first follower;

the positive phase input end of the first follower is connected with the fifth end of the first amplifying device, the negative phase input end of the first follower is connected with the output end of the first follower, and the output end of the first follower is further connected with the first input end of the control processing module.

Optionally, a first end of the eighth resistor is connected to the first output end of the detection main module, a second end of the eighth resistor is connected to the first end of the second amplifying device and the first plate of the second capacitor, respectively, a second plate of the second capacitor is connected to the second end of the second amplifying device, a third end of the second amplifying device is connected to the fourth end of the second amplifying device through the second gain resistor, and a fifth end of the second amplifying device is connected to the second input end of the control processing module;

the sixth end and the seventh end of the second amplifying device are respectively used for inputting working voltage;

the power-on no-load current detection module also comprises a second follower;

the positive phase input end of the second follower is connected with the fifth end of the second amplifying device, the negative phase input end of the second follower is connected with the output end of the second follower, and the output end of the second follower is further connected with the second input end of the control processing module.

Optionally, the load current detection module includes a third gain resistor, a ninth resistor, a third capacitor, and a third amplifying device;

a first end of the ninth resistor is connected to the second output end of the detection main module, a second end of the ninth resistor is connected to a first end of the third amplifying device and a first electrode plate of the third capacitor, respectively, a second electrode plate of the third capacitor is connected to a second end of the third amplifying device, a third end of the third amplifying device is connected to a fourth end of the third amplifying device through the third gain resistor, and a fifth end of the third amplifying device is connected to a third input end of the control processing module;

the sixth end and the seventh end of the third amplifying device are respectively used for inputting working voltage;

the load current detection module further comprises a third follower;

the positive phase input end of the third follower is connected with the fifth end of the third amplifying device, the negative phase input end of the third follower is connected with the output end of the third follower, and the output end of the third follower is further connected with the third input end of the control processing module.

Optionally, the electric power-assisted vehicle controller detection device further includes: starting the control module;

the second control end of the control processing module is connected with the first end of the startup control module, and the startup control module is used for connecting the equipment to be detected;

the control processing module is used for outputting a fourth electric signal according to the first voltage, and the fourth electric signal is used for triggering the starting control module to be conducted;

and under the condition that the startup control module is switched on, the startup control module is used for outputting a fifth electric signal according to the fourth electric signal, and the fifth electric signal is used for triggering the equipment to be detected to be switched from a standby state to a startup no-load state.

Optionally, the start-up control module includes a tenth resistor, an eleventh resistor, and a fifth triode;

the base electrode of the fifth triode is connected with the second control end of the control processing module through the tenth resistor, the collector electrode of the fifth triode is connected with the second end of the equipment to be detected through the eleventh resistor, and the emitting electrode of the fifth triode is grounded.

Optionally, the electric power-assisted vehicle controller detection device further comprises a power supply module;

the first end of the power supply module is used for being connected with the equipment to be detected so as to supply power to the equipment to be detected, the second end of the power supply module is connected with the third input end of the detection main module, and the third end of the power supply module is connected with the power supply end of the control processing module.

Optionally, the power module comprises a power supply and a voltage transformation module;

the first output end of the power supply is connected with the power supply end of the equipment to be detected;

the second output end of the power supply is connected with the input end of the voltage transformation module, the first output end of the voltage transformation module is connected with the third input end of the detection main module, and the second output end of the voltage transformation module is connected with the power supply end of the control processing module.

The beneficial effects of the embodiment of the application include:

according to the detection device for the electric power-assisted vehicle controller, when the device to be detected is in a standby state, the device to be detected outputs current to the first collection point, the main detection module collects the current of the first collection point, the collected current of the first collection point is output to the first input end of the current detection module through the first output end of the main detection module, and the current detection module converts the current of the first collection point into first voltage and outputs the first voltage to the first input end of the control processing module through the first output end of the current detection module. After the control processing module receives the first voltage or the control processing module completes corresponding detection or processing on the first voltage, a relevant technician may control a corresponding switch or the control processing module outputs a corresponding electrical signal to trigger the device to be detected to switch from the standby state to the power-on no-load state. Therefore, the detection of the standby current of the equipment to be detected in the standby state can be finished, and the equipment to be detected is in the no-load state when being started.

Under the condition that the device to be detected is in a power-on no-load state, the device to be detected outputs current to the first collecting point, the main detection module collects the current of the first collecting point and outputs the collected current of the first collecting point to the second input end of the current detection module through the first output end of the main detection module, and the current detection module converts the current of the first collecting point into second voltage and outputs the second voltage to the second input end of the control processing module through the second output end of the current detection module. After the control processing module receives the second voltage or the control processing module completes corresponding detection or processing on the second voltage, a relevant technician may control a corresponding switch or the control processing module outputs a corresponding electrical signal to trigger the device to be detected to switch from a no-load power-on state to a load power-on state. Therefore, the detection of the no-load current of the equipment to be detected in the no-load starting state can be finished, and the equipment to be detected is in the loaded starting state.

Under the condition that the device to be detected is in a power-on and load-carrying state, the device to be detected outputs current to the second collecting point, the main detection module is used for collecting the current of the second collecting point and outputting the collected current of the second collecting point to a third input end of the current detection module through a second output end of the main detection module, and the current detection module is used for converting the current of the second collecting point into third voltage and outputting the third voltage to a third input end of the control processing module through a third output end of the current detection module. After the control processing module receives the third voltage or the control processing module completes corresponding detection or processing on the third voltage, a relevant technician can control a corresponding switch or the control processing module outputs a corresponding electric signal to trigger the device to be detected to be switched from a power-on loading state to a standby state. Therefore, the detection of the loaded current of the equipment to be detected in the starting and loading state can be finished, and the equipment to be detected is in the standby state.

In the detection process of the electric power-assisted vehicle controller detection device on the equipment to be detected, the output currents of the equipment to be detected in a standby state, a no-load starting state and a loaded starting state can be automatically and respectively detected by switching the state of the detection equipment, so that the condition that the electric power-assisted vehicle controller detection device generates false operation or false detection in the detection process can be avoided, and the detection reliability can be improved.

Therefore, the effect of improving the efficiency and the reliability of the detection controller can be achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a first electric power assisted vehicle controller detection device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a second electric power-assisted vehicle controller detection device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a detection main module according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a turn-on circuit according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a third detection device of an electric scooter controller according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a shutdown quiescent current detection module according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a power-on no-load current detection module according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a load current detection module according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a fourth electric scooter controller detection device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a startup control module according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a fifth detection device of an electric power assisted vehicle controller according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a power module according to an embodiment of the present application.

Reference numerals:

101: detection master module, 102: current detection module, 1021: shutdown quiescent current detection module, 1022: boot no-load current detection module, 1023: load current detection module, 103: control processing module, 104: conduction circuit, 105: startup control module, 106: power module, 1061: power supply, 1062: a voltage transformation module;

r1: first resistance, R2: second resistance, R3: third resistance, R4: fourth resistance, R5: fifth resistance, R6: sixth resistance, R7: seventh resistance, R8: eighth resistance, R9: ninth resistance, R10: tenth resistance, R11: eleventh resistor, Q1: field effect transistor, Q2: first transistor, Q3: second transistor, Q4: third transistor, Q5: fourth transistor, Q6: fifth transistor, C1: first capacitance, C2: second capacitance, C3: third capacitance, U1: first amplifying device, U2: first follower, U3: second amplifying device, U4: second follower, U5: third amplification device, U6: and a third follower.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the related art, at the stage of production manufacturing and the like of the controller, it is necessary to detect the performance of the controller to ensure that it can normally operate in the drive system mounted to the electric power-assisted vehicle. Generally, the controller is usually manually detected by a technician, such as detecting parameters of standby current, load current, etc. of the controller. However, the manual detection is inefficient and careless. Therefore, the scheme has the problems of low detection efficiency and poor detection reliability.

Therefore, the embodiment of the application provides a detection device of an electric power-assisted vehicle controller, which comprises a detection main module, a current detection module and a control processing module. The first input end of the detection main module is used for being connected with the equipment to be detected, the first output end of the detection main module is connected with the first input end of the current detection module, the second output end of the detection main module is connected with the second input end of the current detection module, and the first output end, the second output end and the third output end of the current detection module are respectively connected with the first input end, the second input end and the third input end of the control processing module; the first control end of the control processing module is connected with the second input end of the detection main module. The effect of improving the efficiency and reliability of the detection controller can be achieved.

The embodiment of the present application takes an electric power assisted vehicle controller detection device applied to a controller for detecting an electric power assisted vehicle as an example. It is not intended that the embodiments of the present application be applicable only to detecting a controller of an electric power assisted vehicle.

The following explains the electric vehicle controller detection device provided in the embodiment of the present application in detail.

Fig. 1 is a schematic structural diagram of a detection device of an electric power-assisted vehicle controller provided in the present application. Referring to fig. 1, an embodiment of the present application provides an electric power assisted vehicle controller detection device, including: a detection main module 101, a current detection module 102 and a control processing module 103.

The second input end of the detection main module 101 is used for connecting the device to be detected, the first output end of the detection main module 101 is connected with the first input end of the current detection module 102, the second output end of the detection main module 101 is connected with the second input end of the current detection module 102, and the first output end, the second output end and the third output end of the current detection module 102 are respectively connected with the first input end, the second input end and the third input end of the control processing module 103.

The first control end of the control processing module 103 is connected to the third input end of the detection main module 101, and the third input end of the detection main module 101 and the power supply end of the control processing module 103 are respectively used for inputting voltage.

Optionally, the detection main module 101 is configured to collect currents of a first collection point and a second collection point of the device to be detected, and output the currents of the first collection point and the second collection point to a first input terminal and a second input terminal of the current detection module 102, respectively.

Optionally, the current detection module 102 is configured to output a first voltage or a second voltage to the control processing module 103 through a first output terminal or a second output terminal of the current detection module 102 according to the current output by the detection main module 101 to the first input terminal of the current detection module 102, and output a third voltage to the control processing module 103 through a third output terminal of the current detection module 102 according to the current output by the detection main module 101 to the second input terminal of the current detection module 102.

Optionally, the control processing module 103 may be further configured to output a turn-on voltage to a third input terminal of the detection main module 101 through a first output terminal of the control processing module 103.

The control processing module 103 may be specifically configured to output the on-voltage to the third input terminal of the detection main module 101 through the first output terminal of the control processing module 103 according to the second voltage.

The turn-on voltage is used to trigger detection master module 101 to switch from collecting current at the first collection point to collecting current at the second collection point.

Optionally, the device to be detected may be the electric bicycle controller described above, or may be any other electronic device. The embodiment of the present application does not limit this.

In addition, in the process of detecting the equipment to be detected, voltage can be applied to the equipment to be detected to supply power to the equipment to be detected so as to ensure that the equipment to be detected can enter different working states or non-working states, and therefore, the current of the equipment to be detected in different states can be detected through the detection device of the electric power assisting vehicle controller.

The equipment to be detected can also be switched to a standby state, a power-on no-load state, a power-on loading state or other possible states. Specifically, the electric power assisted vehicle controller detection device can be changed by setting a corresponding load and a switch or a button for switching the state of the device to be detected, so as to realize the function of respectively switching the device to be detected to a standby state, a no-load starting state, a loading starting state or other possible states.

Alternatively, the first collection point may be a detection point set by a technician and used for collecting the current output by the device to be detected in a standby state or a power-on no-load state. The second collection point may be a detection point set by a technician and used for collecting the current output by the device to be detected in a powered-on and loaded state.

The first collection point and the second collection point may be respectively disposed at different detection resistors in the detection main module 101, which is not limited in this embodiment of the present application.

Alternatively, the control processing module 103 may be a Micro Controller Unit (MCU).

Optionally, the standby state may be that a power supply outside the electric power assisted vehicle controller detection device or a power supply inside the electric power assisted vehicle controller detection device applies voltage to the device to be detected, but the device to be detected is not powered on.

The power-on no-load state means that the equipment to be detected is powered on when being powered on, but the equipment to be detected is in the no-load state, namely the motor connected with the equipment to be detected does not output torque.

The power-on and load-carrying state means that the equipment to be detected is powered on when being powered on, and the equipment to be detected is in a load state, namely the motor output torque connected with the equipment to be detected.

For example, starting switches may be disposed at two ends of the device to be detected, and the device to be detected is controlled to be in a standby state or a power-on no-load state by controlling the starting switches to be closed. In addition, two ends of the device to be detected can be provided with a change-over switch, whether loads are connected to the two ends of the device to be detected or not is controlled by controlling the change-over switch, and the size of the connected loads can be adjusted by the change-over switch or other switches to change the device to be detected to be in a no-load starting state or a load starting state. The circuit provided with the starting switch and the changeover switch may be any control circuit, which is not limited in the embodiments of the present application.

For example, the start switch may be disposed between a power supply outside the electric power assisted vehicle controller detection device or a power supply inside the electric power assisted vehicle controller detection device and the device to be detected, when the start switch is turned off, the device to be detected is not powered on, and when the start switch is turned on, the device to be detected is powered on, that is, the motor connected to the device to be detected does not output torque, and at this time, the device to be detected is in a no-load state when being powered on.

For another example, when the switch is turned off, no load is applied to the two ends of the device to be detected, and at this time, the device to be detected is in a no-load starting state. Under the condition that the change-over switch is closed, loads are connected to two ends of the equipment to be detected, and at the moment, the equipment to be detected is in a starting-up load-carrying state.

For another example, the control processing module 103 may output different electrical signals to the device to be detected according to the first voltage, the second voltage, or the third voltage, so that the device to be detected is switched to different states. The embodiments of the present application do not limit this.

It should be noted that the external power source of the detection device of the electric power assisted vehicle controller may be used to provide the working voltage for the detection of the input voltage of the main module 101, the current detection module 102, the control processing module 103 and the device to be detected, or the internal power source of the detection device of the electric power assisted vehicle controller may be used to provide the working voltage for the detection of the input voltage of the main module 101, the current detection module 102, the control processing module 103 and the device to be detected. In addition, the voltages of the input detection main module 101, the current detection module 102, the control processing module 103, and the device to be detected may be different, and specifically, the voltages may be respectively input to each module or the device to be detected according to the actual voltage required by each module or the device to be detected, which is not limited in this embodiment of the present application.

The power supply outside the electric bicycle controller detection device can be a direct current battery, a commercial power or a generator. The built-in power supply in the electric power-assisted vehicle controller detection device can be a direct current battery or a power supply conversion device connected with commercial power. The embodiment of the present application does not limit this.

It should be noted that, when the device to be detected is in a standby state, the device to be detected outputs a current to the first collecting point, the main detecting module 101 detects the current collected at the first collecting point, and outputs the collected current at the first collecting point to the first input end of the current detecting module 102 through the first output end of the main detecting module 101, and the current detecting module 102 converts the current at the first collecting point into a first voltage and outputs the first voltage to the first input end of the control processing module 103 through the first output end of the current detecting module 102. After the control processing module 103 receives the first voltage or the control processing module 103 completes corresponding detection or processing on the first voltage, a relevant technician may control a corresponding switch or the control processing module 103 outputs a corresponding electrical signal to trigger the device to be detected to switch from the standby state to the power-on no-load state. Therefore, the detection of the standby current of the equipment to be detected in the standby state can be finished, and the equipment to be detected is in the no-load state when being started.

Under the condition that the device to be detected is in a power-on no-load state, the device to be detected outputs current to the first collection point, the detection main module 101 collects the current of the first collection point, the collected current of the first collection point is output to the second input end of the current detection module 102 through the first output end of the detection main module 101, and the current detection module 102 converts the current of the first collection point into second voltage and outputs the second voltage to the second input end of the control processing module 103 through the second output end of the current detection module 102. After the control processing module 103 receives the second voltage or the control processing module 103 completes corresponding detection or processing on the second voltage, a relevant technician may control a corresponding switch or the control processing module 103 outputs a corresponding electrical signal to trigger the device to be detected to switch from the power-on no-load state to the power-on loaded state. Therefore, the detection of the no-load current of the equipment to be detected in the no-load starting state can be finished, and the equipment to be detected is in the loaded starting state.

Under the condition that the device to be detected is in a powered on and loaded state, the device to be detected outputs current to the second collection point, the detection main module 101 collects the current of the second collection point, the collected current of the second collection point is output to the third input end of the current detection module 102 through the second output end of the detection main module 101, and the current detection module 102 converts the current of the second collection point into third voltage and outputs the third voltage to the third input end of the control processing module 103 through the third output end of the current detection module 102. After the control processing module 103 receives the third voltage or the control processing module 103 completes corresponding detection or processing on the third voltage, a relevant technician may control a corresponding switch or the control processing module 103 outputs a corresponding electrical signal to trigger the device to be detected to switch from the power-on loading state to the standby state. Therefore, the detection of the loaded current of the equipment to be detected in the starting and loading state can be finished, and the equipment to be detected is in the standby state.

The detection device for the electric power-assisted vehicle controller provided by the embodiment of the application can change the state of the device to be detected in various ways, for example, the related technicians can control the starting switch or the change-over switch to change the state of the device to be detected, and the control processing module 103 can output different electric signals to the device to be detected to trigger the device to be detected to be switched into different states. The manner in which the control processing module 103 controls the state of the device to be tested is described in detail below.

In a possible manner, referring to fig. 2, the second control terminal of the control processing module 103 is used for connecting the device to be detected.

The control processing module 103 can be further configured to output a first electrical signal according to the first voltage, output a second electrical signal according to the second voltage, and output a third electrical signal according to the third voltage.

Specifically, the first electrical signal, the second electrical signal and/or the third electrical signal may be output to the device to be detected through the second control terminal of the control processing module 103.

In addition, the first electric signal is used for triggering the equipment to be detected to be switched from a standby state to a power-on no-load state.

The second electric signal is used for triggering the equipment to be detected to be switched from a power-on no-load state to a power-on loaded state.

The third electric signal is used for triggering the equipment to be detected to be switched from a starting-up loading state to a standby state.

It should be noted that, in the case that the detection main module 101 and the control processing module 103 change from the power-off state to the power-on state, but the control processing module 103 does not output the first electrical signal, the device to be detected is in the standby state. Under the condition that the control processing module 103 outputs the first electric signal, the device to be detected is in a power-on no-load state. Under the condition that the control processing module 103 outputs the second electric signal, the device to be detected is in a power-on no-load state. In the case where the control processing module 103 outputs the third electrical signal, the device to be detected is in a standby state.

Under the condition that the device to be detected is in a standby state, the device to be detected outputs current to the first collection point, the detection main module 101 collects the current of the first collection point, the collected current of the first collection point is output to a first input end of the current detection module 102 through a first output end of the detection main module 101, and the current detection module 102 converts the current of the first collection point into first voltage and outputs the first voltage to a first input end of the control processing module 103 through a first output end of the current detection module 102. After the control processing module 103 receives the first voltage, the control processing module 103 may output a first electrical signal to the device to be detected to trigger the device to be detected to switch from the standby state to the power-on no-load state. Therefore, the detection of the standby current of the equipment to be detected in the standby state can be finished, and the equipment to be detected is in the no-load state when being started.

In the case that the current detection module 102 does not output the first voltage to the control processing module 103, the control processing module 103 does not output a second electrical signal to the device to be tested according to the second voltage output by the current detection module 102. And after the control processing module 103 outputs the first electric signal, the control processing module 103 does not output the first electric signal to the device to be tested at the first voltage output by the current detection module 102. Therefore, the condition that the electric power-assisted vehicle controller detection device has misoperation or misdetection in the detection process can be avoided, and the detection reliability can be improved.

Under the condition that the device to be detected is in a power-on no-load state, the device to be detected outputs current to the first collection point, the detection main module 101 collects the current of the first collection point, the collected current of the first collection point is output to the second input end of the current detection module 102 through the first output end of the detection main module 101, and the current detection module 102 converts the current of the first collection point into second voltage and outputs the second voltage to the second input end of the control processing module 103 through the second output end of the current detection module 102. After the control processing module 103 receives the second voltage, the control processing module 103 may output a second electrical signal to the device to be detected to trigger the device to be detected to switch from the power-on no-load state to the power-on loaded state. Therefore, the detection of the no-load current of the equipment to be detected in the no-load starting state can be finished, and the equipment to be detected is in the loaded starting state.

After the control processing module 103 outputs the second electrical signal, the control processing module 103 outputs a third electrical signal to the device to be tested according to the third voltage output by the current detecting module 102. That is, in the case where the control processing module 103 does not output the second electric signal, the control processing module 103 does not output the third electric signal. And after the control processing module 103 outputs the second electrical signal, the control processing module 103 may further output a turn-on voltage to the detection main module 101 through the first output terminal to trigger the detection main module 101 to switch from collecting the current of the first collection point to collecting the current of the second collection point. Therefore, the condition that the electric power-assisted vehicle controller detection device has misoperation or misdetection in the detection process can be avoided, and the detection reliability can be improved.

Under the condition that the device to be detected is in a powered on and loaded state, the device to be detected outputs current to the second collection point, the detection main module 101 collects the current of the second collection point, the collected current of the second collection point is output to the third input end of the current detection module 102 through the second output end of the detection main module 101, and the current detection module 102 converts the current of the second collection point into third voltage and outputs the third voltage to the third input end of the control processing module 103 through the third output end of the current detection module 102. After the control processing module 103 receives the third voltage, the control processing module 103 may output a third electrical signal to the device to be detected to trigger the device to be detected to switch from the power-on loading state to the standby state. Therefore, the detection of the loaded current of the equipment to be detected in the starting and loading state can be finished, and the equipment to be detected is in the standby state. Therefore, automatic detection of the equipment to be detected can be realized.

In a possible manner, the control processing module 103 may determine whether the currents output by the device to be detected in the standby state, the power-on no-load state, and the power-on loaded state are normal by comparing the first voltage, the second voltage, the third voltage, and a preset voltage threshold, and output the detection result.

For example, if the preset voltage threshold of the device to be detected is 1V (volt) in the standby state, if the first voltage is less than or equal to 1V, it is determined that the current output by the device to be detected in the standby state is normal, and otherwise, it is determined that the current output by the device to be detected in the standby state is abnormal.

If the preset voltage threshold value is 10V when the equipment to be detected is in the power-on no-load state, if the second voltage is less than or equal to 10V, determining that the current output by the equipment to be detected in the power-on no-load state is normal, otherwise, determining that the current output by the equipment to be detected in the power-on no-load state is abnormal.

If the preset voltage threshold value is 20V when the equipment to be detected is in the startup loading state, if the third voltage is less than or equal to 20V, determining that the current output by the equipment to be detected in the startup loading state is normal, otherwise, determining that the current output by the equipment to be detected in the startup loading state is abnormal.

In a possible implementation manner, on the basis of fig. 2 and referring to fig. 3, the detection main module 101 includes a field effect transistor Q1, a first resistor R1, a second resistor R2, and a turn-on circuit 104.

The drain of the field effect transistor Q1 is connected with the first end of the first resistor R1 and the first input end of the current detection module 102, the drain of the field effect transistor Q1 is also used for connecting the device to be detected, the source of the field effect transistor Q1 is connected with the second end of the first resistor R1, the first end of the second resistor R2, the first end of the conduction circuit 104 and the second input end of the current detection module 102, the gate of the field effect transistor Q1 is connected with the second end of the conduction circuit 104, and the second end of the second resistor R2 is connected with the third end of the conduction circuit 104.

The third terminal of the conducting circuit 104 is used for inputting a voltage, and the fourth terminal of the conducting circuit 104 is connected to the first control terminal of the control processing module 103.

The second terminal of the second resistor R2 is connected to ground.

Optionally, the fet Q1 is turned on to short the first resistor R1 when the turn-on circuit 104 is turned on.

Alternatively, the field effect transistor Q1 may be an NMOS transistor.

For example, the first resistor R1 may be a resistor with a resistance of 2 Ω, and the second resistor R2 may be a resistor with a resistance of 0.004 Ω. Of course, the resistances of the first resistor R1 and the second resistor R2 can be adjusted according to the parameters of the device under test. The embodiment of the present application does not limit this.

The first resistor R1 can be used to sample the current output by the device under test in standby or idle on power.

The second resistor R2 can be used to sample the current output by the device under test when the device under test is in the power-on and load state.

In addition, the drain of the fet Q1 may be used to connect to the ground of the device under test, so as to implement the common ground of the drain of the fet Q1 and the device under test.

It should be noted that the power supply outside the device may be detected by the electric power assisted vehicle controller or the power supply built in the device may output the voltage required by the conducting circuit 104 to the third terminal of the conducting circuit 104, so as to ensure that the conducting circuit 104 can work normally. In addition, the voltage input to the third terminal of the turn-on circuit 104 may be adjusted according to the actually required voltage value of the turn-on circuit 104, which is not limited in the embodiment of the present application.

When the device to be detected is in a standby state, the control processing module 103 does not output the above-mentioned turn-on voltage, at this time, the turn-on circuit 104 is not turned on, the field effect transistor Q1 is not turned on, and the first resistor R1 is not short-circuited. The current output by the device to be detected can flow through the first resistor R1 through the first collecting point, that is, the first resistor R1 can collect the current output by the device to be detected in a standby state. Then, the detection main module 101 may output the current flowing through the first resistor R1 to the first input terminal of the current detection module 102, and output the first voltage to the first input terminal of the control processing module 103 by the current detection module 102, so as to implement the detection of the standby current of the device to be detected in the standby state.

Under the condition that the device to be detected is in a power-on no-load state, the control processing module 103 does not output the conducting voltage, at this time, the conducting circuit 104 is not conducted, the field effect transistor Q1 is not conducted, and the first resistor R1 is not short-circuited. The first resistor R1 can collect the current outputted by the device under test in the idle state. Then, the detection main module 101 can output the current flowing through the first resistor R1 to the first input terminal of the current detection module 102, and output the second voltage to the second input terminal of the control processing module 103 by the current detection module 102, so as to implement the detection of the standby current of the device to be detected in the power-on no-load state.

Under the condition that the device to be detected is in a power-on and load-carrying state, the control processing module 103 outputs the conducting voltage, at this time, the conducting circuit 104 is conducted, the field-effect tube Q1 is conducted, and the first resistor R1 is short-circuited by the field-effect tube Q1. At this time, the current output by the device to be detected does not flow through the first resistor R1, but only flows through the second resistor R2, so that the detection main module 101 can output the current flowing through the second resistor R2 to the second input terminal of the current detection module 102, and the current detection module 102 outputs the third voltage to the third input terminal of the control processing module 103, so as to detect the standby current of the device to be detected in the power-on and load-carrying state.

The control processing module 103 outputs the conducting voltage to trigger the conducting circuit 104 to conduct, and further trigger the fet Q1 to conduct, so as to short the first resistor R1. In the case that the first resistor R1 is not short-circuited, the current output by the device to be tested can flow through the first resistor R1, and in the case that the first resistor R1 is short-circuited, the current output by the device to be tested can only flow through the second resistor R2, that is, only the second resistor R2 can collect the current output by the device to be tested when the device to be tested is in the power-on and load-carrying state. Therefore, the condition that the electric power-assisted vehicle controller detection device has misoperation or misdetection in the detection process can be avoided, and the detection reliability can be improved.

In a possible implementation manner, referring to fig. 4 based on fig. 3, the conducting circuit 104 includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first triode Q2, a second triode Q3, a third triode Q4, and a fourth triode Q5.

The first end of the third resistor R3 is connected with the source electrode of the field effect transistor Q1, the first end of the fourth resistor R4 is connected with the gate electrode of the field effect transistor Q1, the second end of the fourth resistor R4 is respectively connected with the second end of the third resistor R3, the emitter electrode of the first triode Q2 and the emitter electrode of the second triode Q3, and the collector electrode of the first triode Q2 is respectively connected with the second end of the second resistor R2, the emitter electrode of the third triode Q4 and the base electrode of the first triode Q2.

The base of the second triode Q3 is connected with the base of the first triode Q2 and the collector of the fourth triode Q5 respectively.

The base of the third triode Q4 is connected to the first control end of the control processing module 103, the collector of the third triode Q4 is connected to the base of the fourth triode Q5 and the first end of the sixth resistor R6 through the fifth resistor R5, the second end of the sixth resistor R6 is connected to the emitter of the fourth triode Q5 and the collector of the second triode Q3, and the second end of the sixth resistor R6 is used for inputting voltage.

Alternatively, the first transistor Q2 and the fourth transistor Q5 may be PNP transistors.

Alternatively, the second transistor Q3 and the third transistor Q4 may be NPN transistors.

It should be noted that the power supply external to the apparatus or the power supply built in the apparatus may be detected by the controller of the electric power assisted vehicle to output the required voltage to the second terminal of the sixth resistor R6, the emitter of the fourth transistor Q5, and the collector of the second transistor Q3, so as to ensure that the turn-on circuit 104 can operate normally.

Illustratively, the first control terminal of the control processing module 103 may output a turn-on voltage having a value of 3.3V to the base of the third transistor Q4. The electric power assisted vehicle controller can detect a power supply outside the device or the power supply built in the device to output a working voltage with a voltage value of 15V to the collector of the second triode Q3, the emitter of the fourth triode Q5 and the second end of the sixth resistor R6.

It should be noted that, the base of the third transistor Q4 is connected to the first control terminal of the control processing module 103, and the collector of the second transistor Q3 is used for inputting the voltage. In the case that the first control terminal of the control processing module 103 does not output the turn-on voltage to the base of the third transistor Q4, since the power supply continues to output the voltage to the collector of the third transistor Q4, but the turn-on voltage is not applied to the base of the third transistor Q4, and the emitter of the third transistor Q4 is connected to the second terminal of the second resistor R2 and grounded, at this time, the third transistor Q4 is not turned on. Then, the voltage at the base of the fourth transistor Q5 is equal to the voltage at the emitter of the fourth transistor Q5, the fourth transistor Q5 is also non-conductive, the voltage at the base of the second transistor Q3 is less than the voltage at the emitter of the second transistor Q3, the second transistor Q3 is also non-conductive, the voltage at the base of the first transistor Q2 is equal to the voltage at the collector of the first transistor Q2, and the first transistor Q2 is also non-conductive. Therefore, when the first control terminal of the control processing module 103 does not output the on-voltage to the base of the third transistor Q4, the on-circuit 104 is not turned on, and therefore the fet Q1 is also not turned on, and at this time, the first resistor R1 is not short-circuited.

When the first control terminal of the control processing module 103 outputs the on-voltage to the base of the third transistor Q4, the base of the third transistor Q4 is applied with the on-voltage, and at this time, the third transistor Q4 is turned on. Then, the voltage at the base of the fourth transistor Q5 is lower than the voltage at the emitter of the fourth transistor Q5, the fourth transistor Q5 is turned on, the voltage at the base of the second transistor Q3 is higher than the voltage at the emitter of the second transistor Q3, the second transistor Q3 is also turned off, the voltage at the base of the first transistor Q2 is higher than the voltage at the collector of the first transistor Q2, and the first transistor Q2 is also turned on. Therefore, when the first control terminal of the control processing module 103 outputs the on-voltage to the base of the third transistor Q4, the on-circuit 104 is turned on, and the fet Q1 is also turned on, and at this time, the first resistor R1 is short-circuited.

In this way, the conducting voltage is output from the first control terminal of the control processing module 103 to the base of the third transistor Q4 to trigger the conducting circuit 104 to conduct, and further trigger the fet Q1 to conduct, so as to short-circuit the first resistor R1.

In a possible implementation manner, on the basis of fig. 2, referring to fig. 5, the current detection module 102 includes: a shutdown quiescent current detection module 1021, a startup no-load current detection module 1022, and a load current detection module 1023.

The input end of the shutdown quiescent current detection module 1021 and the input end of the startup no-load current detection module 1022 are both connected with the first output end of the detection main module 101, the input end of the load current detection module 1023 is connected with the second output end of the detection main module 101, and the output end of the shutdown quiescent current detection module 1021, the output end of the startup no-load current detection module 1022 and the output end of the load current detection module 1023 are respectively connected with the first input end, the second input end and the third input end of the control processing module 103.

The detection main module 101 is configured to collect a first current at a first sampling point of the device to be detected and output the first current to an input of the shutdown static current detection module 1021, collect a second current at the first sampling point of the device to be detected and output the second current to an input of the startup no-load current detection module 1022, collect a third current at a second sampling point of the device to be detected and output the third current to an input of the load current detection module 1023.

The shutdown quiescent current detection module 1021 is configured to output the first voltage according to the first current.

The power-on no-load current detection module 1022 is configured to output the second voltage according to the second current.

The load current detection module 1023 is used for outputting the third voltage according to the third current.

Alternatively, the first current may be a current output when the device to be detected is in a standby state. The first current may also be the current of the first resistor R1 when the device under test is in a standby state. The embodiment of the present application does not limit this.

Alternatively, the second current may be a current output when the device to be detected is in a power-on no-load state. The second current may also be the current of the first resistor R1 when the device under test is in the power-on no-load state. The embodiment of the present application does not limit this.

Alternatively, the third current may be a current output when the device to be detected is in a power-on and load state. The third current may also be the current of the second resistor R2 when the device under test is in the power-on and load-on state. The embodiment of the present application does not limit this.

Therefore, the current output when the equipment to be detected is in a standby state, a no-load starting state and a loading starting state respectively can be detected, and the practicability of the electric power assisting vehicle controller detection device can be further ensured.

In a possible implementation manner, based on fig. 5 and referring to fig. 6, the shutdown quiescent current detection module 1021 includes a first gain resistor Ra, a seventh resistor R7, a first capacitor C1, and a first amplifying device U1.

A first end of the seventh resistor R7 is connected to the first output end of the detection main module 101, a second end of the seventh resistor R7 is connected to the first end of the first amplifying device U1 and the first pole plate of the first capacitor C1, the second pole plate of the first capacitor C1 is connected to the second end of the first amplifying device U1, a third end of the first amplifying device U1 is connected to the fourth end of the first amplifying device U1 through the first gain resistor Ra, and a fifth end of the first amplifying device U1 is connected to the first input end of the control processing module 103.

The sixth terminal and the seventh terminal of the first amplifying device U1 are used for inputting the operating voltage, respectively.

Alternatively, the resistance value of the first gain resistor Ra may be 245 Ω. The seventh resistor R7 may have a resistance of 10k omega.

Alternatively, the first amplifying means U1 may be an instrumentation amplifier, and the specific model of the instrumentation amplifier may be AD 620B. The gain factor of the first amplifying means U1 may be 1-100 times. The embodiment of the present application does not limit this.

Alternatively, the operating voltage input to the sixth terminal of the first amplifying device U1 may be +5V, and the operating voltage input to the seventh terminal of the first amplifying device U1 may be-5V. Of course, the operating voltages inputted to the sixth terminal and the seventh terminal of the first amplifying device U1 may be voltages with any other possible voltage values. The embodiment of the present application does not limit this.

It should be noted that, since the current output by the device under test in the standby state is very small, and usually does not exceed 50 μ a (microampere), the current collected by the detection main module 101 at the first collection point in the standby state of the device under test needs to be input to the first amplifying device U1 for amplification and conversion into the first voltage, so as to ensure that the first voltage output by the shutdown quiescent current detection module 1021 to the first input end of the control processing module 103 can be accurately identified by the control processing module 103, and a shutdown quiescent current detection result is determined according to the first voltage.

In one possible approach, with continued reference to fig. 6, the shutdown quiescent current detection module 1021 also includes a first follower U2.

The positive phase input end of the first follower U2 is connected to the fifth end of the first amplifying device U1, the negative phase input end of the first follower U2 is connected to the output end of the first follower U2, and the output end of the first follower U2 is further connected to the first input end of the control processing module 103.

Optionally, the first follower U2 has a magnification of 1. The first follower U2 may be of the type GS8552 operational amplifier. The embodiment of the present application does not limit this.

It is noted that the first follower U2 functions to reduce the effect of the impedance of the first amplifying means U1 on the first voltage output by the first amplifying means U1. By arranging the first follower U2, the detection accuracy and reliability of the electric power-assisted vehicle controller detection device can be improved.

In a possible implementation manner, based on fig. 5 and referring to fig. 7, the power-on no-load current detection module 1022 includes a second gain resistor Rb, an eighth resistor R8, a second capacitor C2, and a second amplifying device U3.

A first end of the eighth resistor R8 is connected to the first output end of the detection main module 101, a second end of the eighth resistor R8 is connected to a first end of the second amplifying device U3 and a first plate of the second capacitor C2, respectively, a second plate of the second capacitor C2 is connected to a second end of the second amplifying device U3, a third end of the second amplifying device U3 is connected to a fourth end of the second amplifying device U3 through the second gain resistor Rb, and a fifth end of the second amplifying device U3 is connected to a second input end of the control processing module 103.

The sixth terminal and the seventh terminal of the second amplifying device U3 are used for inputting the operating voltage, respectively.

Alternatively, the resistance value of the second gain resistor Rb may be 5.43k Ω. The eighth resistor R8 may have a resistance of 10k omega.

Alternatively, the second amplifying means U3 may be an instrumentation amplifier, the specific model of which may be AD 620B. The gain factor of the second amplifying means U3 may be 50 times. The embodiment of the present application does not limit this.

Alternatively, the operating voltage input to the sixth terminal of the second amplifying device U3 may be +5V, and the operating voltage input to the seventh terminal of the second amplifying device U3 may be-5V. Of course, the operating voltages input to the sixth terminal and the seventh terminal of the second amplifying device U3 may be voltages with any other possible voltage values. The embodiment of the present application does not limit this.

It should be noted that, because the current output by the device to be detected in the power-on no-load state is relatively small, and usually does not exceed 50mA (milliampere), the current collected by the detection main module 101 at the first collection point in the power-on no-load state of the device to be detected needs to be input to the second amplification device U3 for amplification and conversion into the second voltage, so as to ensure that the second voltage output by the power-on no-load current detection module 1022 to the second input end of the control processing module 103 can be accurately identified by the control processing module 103, and the power-on no-load current detection result is determined according to the second voltage.

In one possible approach, with continued reference to fig. 7, the power-on idle current detection module 1022 also includes a second follower U4.

The positive phase input end of the second follower U4 is connected to the fifth end of the second amplifying device U3, the negative phase input end of the second follower U4 is connected to the output end of the second follower U4, and the output end of the second follower U4 is further connected to the second input end of the control processing module 103.

Optionally, the magnification of the second follower U4 is 1. The second follower U4 may be of the type GS8552 operational amplifier. The embodiment of the present application does not limit this.

It is noted that the second follower U4 functions to reduce the effect of the impedance of the second amplifying means U3 on the second voltage output by the second amplifying means U3. By arranging the second follower U4, the detection accuracy and reliability of the electric power-assisted vehicle controller detection device can be improved.

In a possible implementation manner, on the basis of fig. 5 and referring to fig. 8, the load current detection module 1023 includes a third gain resistor Rc, a ninth resistor R9, a third capacitor C3, and a third amplifying device U5.

A first end of a ninth resistor R9 is connected to the second output end of the detection main module 101, a second end of the ninth resistor R9 is connected to a first end of a third amplifying device U5 and a first plate of a third capacitor C3, respectively, a second plate of a third capacitor C3 is connected to a second end of a third amplifying device U5, a third end of the third amplifying device U5 is connected to a fourth end of the third amplifying device U5 through a third gain resistor Rc, and a fifth end of the third amplifying device U5 is connected to a third input end of the control processing module 103.

The sixth terminal and the seventh terminal of the third amplifying device U5 are used for inputting the operating voltage, respectively.

Alternatively, the value of the third gain resistor Rc may be 0.98k Ω. The ninth resistor R9 may have a resistance of 10k omega.

Alternatively, the third amplifying means U5 may be an instrumentation amplifier, the specific model of which may be AD 620B. The gain factor of the third amplifying means U5 may be 10 times. The embodiment of the present application does not limit this.

Alternatively, the operating voltage input to the sixth terminal of the third amplifying device U5 may be +5V, and the operating voltage input to the seventh terminal of the third amplifying device U5 may be-5V. Of course, the operating voltages input to the sixth terminal and the seventh terminal of the third amplifying device U5 may be voltages with any other possible voltage values. The embodiment of the present application does not limit this.

It should be noted that, because the current output by the device to be detected in the power-on and load-carrying state is relatively large, generally 1 to 20A (amperes), the current collected by the detection main module 101 at the second collection point in the power-on and load-carrying state needs to be input to the third amplification device U5 for amplification and converted into the third voltage, so as to ensure that the third voltage output by the power-on and load-carrying current detection module 102 to the third input end of the control processing module 103 is not too large to damage the control processing module 103 or other elements in the detection device of the electric power-assisted vehicle controller, and also ensure that the control processing module 103 accurately identifies the third voltage, and determine the power-on no-load current detection result according to the third voltage.

In one possible approach, with continued reference to fig. 8, the load current detection module 1023 further includes a third follower U6.

The positive phase input end of the third follower U6 is connected to the fifth end of the third amplifying device U5, the negative phase input end of the third follower U6 is connected to the output end of the third follower U6, and the output end of the third follower U6 is further connected to the third input end of the control processing module 103.

Optionally, the third follower U6 has a magnification of 1. The third follower U6 may be of the type GS8552 operational amplifier. The embodiment of the present application does not limit this.

It is noted that the third follower U6 is used to reduce the effect of the impedance of the third amplifying device U5 on the second voltage output by the third amplifying device U5. By arranging the third follower U6, the detection accuracy and reliability of the electric power-assisted vehicle controller detection device can be improved.

In a possible manner, the operating voltages input to the sixth terminal and the seventh terminal of the first amplifying device U1, the sixth terminal and the seventh terminal of the second amplifying device U3, and the sixth terminal and the seventh terminal of the third amplifying device U5 may be output by the power chip.

Alternatively, the power chip may be powered by a power source external to the electric booster controller detection device or a power source built in the electric booster controller detection device. The embodiment of the present application does not limit this.

Illustratively, the power supply chip may be a power supply chip of model LM 27762.

In a possible implementation manner, referring to fig. 9, the electric bicycle controller detection device further includes: the control module 105 is started.

The second control terminal of the control processing module 103 is connected to the first terminal of the power-on control module 105, and the power-on control module 105 is used for connecting the device to be detected.

The control processing module 103 is configured to output a fourth electrical signal according to the first voltage.

When the power-on control module 105 is turned on, the power-on control module 105 is configured to output a fifth electrical signal according to the fourth electrical signal.

Optionally, the fourth electrical signal is used to trigger the start-up control module 105 to conduct.

Optionally, the fifth electrical signal is used to trigger the device to be detected to switch from a standby state to an on-idle state.

It should be noted that the control processing module 103 may trigger the start-up control module 105 to conduct and output a fifth electrical signal by outputting the fourth electrical signal to the start-up control module 105, so as to trigger the device to be tested to switch from the standby state to the idle-on state. Therefore, the control processing module 103 can be prevented from being directly connected with the device to be detected, so that the device to be detected can be prevented from directly outputting large current or large voltage to the control processing module 103 to damage the control processing module 103. Therefore, the safety and the reliability of the electric power assisting vehicle controller detection device can be improved.

In one possible implementation, referring to fig. 10, the turn-on control module 105 includes a tenth resistor R10, an eleventh resistor R11, and a fifth transistor Q6.

The base of the fifth triode Q6 is connected with the second control end of the control processing module 103 through a tenth resistor R10, the collector of the fifth triode Q6 is connected with the second end of the device to be detected through an eleventh resistor R11, and the emitter of the fifth triode Q6 is grounded.

It should be noted that, when the control processing module 103 outputs the fourth electrical signal to the base of the fifth transistor Q6 through the tenth resistor R10, since the emitter of the fifth transistor Q6 is grounded, and the collector of the fifth transistor Q6 is connected to the second end of the device to be tested through the eleventh resistor R11, the voltage of the collector of the fifth transistor Q6 is greater than the base of the fifth transistor Q6, the base of the fifth transistor Q6 is greater than the voltage of the emitter of the fifth transistor Q6, and at this time, the fifth transistor Q6 is turned on. In this case, the device to be tested may be triggered to switch from a standby state to an on-idle state.

In a possible implementation manner, referring to fig. 11, the electric bicycle controller detection device further includes: a power module 106.

The first end of the power module 106 is used for connecting the device to be detected to supply power to the device to be detected, the second end of the power module 106 is connected with the third input end of the detection main module 101, and the third end of the power module 106 is connected with the power supply end of the control processing module 103.

The power module 106 may be the power source built in the detection device of the electric power assisted vehicle controller.

In one possible implementation, referring to fig. 12, the power module 106 includes a power source 1061 and a transformation module 1062.

A first output terminal of the power supply 1061 is connected to a power supply terminal of the device to be tested.

A second output end of the power supply 1061 is connected to an input end of the transforming module 1062, a first output end of the transforming module 1062 is connected to a third input end of the detection main module 101, a second output end of the transforming module 1062 is connected to a power supply end of the control processing module 103, and a third output end of the transforming module 1062 is connected to a third end of the conduction circuit 104.

Alternatively, the power supply 1061 may output a voltage at a voltage level of 24V, 36V, 48V, 72V, or any other possible voltage level. The embodiment of the present application does not limit this.

For example, the first output terminal of the power supply 1061 may output 36V or any other voltage that may enable the device to be detected to normally power on to operate to the power supply terminal of the device to be detected. The embodiment of the present application does not limit this.

A second output of the power supply 1061 may output 20V or any other voltage level to an input of the transformer module 1062. The embodiment of the present application does not limit this.

Alternatively, the transforming module 1062 may be a step-down transformer. And the voltage transformation module 1062 may simultaneously convert the voltage output from the second output terminal of the power supply 1061 into a plurality of voltages of different levels.

For example, if the voltage output from the second output terminal of the power supply 1061 is 20V, the transforming module 1062 may convert the voltage output from the second output terminal of the power supply 1061 to the transforming module 1062 into a 15V voltage and output the 15V voltage to the first input terminal of the detection main module 101 through the first output terminal, and the transforming module 1062 may further convert the voltage output from the second output terminal of the power supply 1061 to the transforming module 1062 into a 3.6V voltage and output the 3.6V voltage to the power terminal of the control processing module 103 through the second output terminal.

In a possible implementation manner, the electric power-assisted vehicle controller detection device further includes a voltage detection module.

The voltage detection module may be connected between the power module 106 and the control processing module 103.

The voltage detection module may be used to detect whether the voltage output by the power module 106 is normal.

For example, the voltage detection module may include at least one voltage dividing resistor, and the voltage across each voltage dividing resistor is output to one pin of the control processing module 103, and the control processing module 103 may obtain the voltage output by the power module 106 according to the voltage output by the voltage detection module, so as to determine whether the battery voltage for the power module 106 is normal.

In a possible implementation manner, the electric power-assisted vehicle controller detection device further includes a plurality of filter capacitors.

The filter capacitors may be respectively installed between two ends of the third resistor R3, the base of the third transistor Q4, and the second end of the second resistor R2.

Of course, the first plate of each filter capacitor may also be connected to any one of the shutdown quiescent current detection module 1021, the startup no-load current detection module 1022 and the load current detection module 1023, while the second plate of each filter capacitor is grounded. The embodiment of the present application does not limit this.

In a possible implementation manner, the electric power-assisted vehicle controller detection device further includes a plurality of current-limiting resistors.

Each current limiting resistor may be connected in parallel with each filter capacitor. The embodiment of the present application does not limit this.

In a possible implementation manner, the electric power-assisted vehicle controller detection device may further include a display module, and the display module may be connected to the control processing module 103.

After the detection of the equipment to be detected is completed by the electric power-assisted vehicle controller detection device, the display module can display the current output by the equipment to be detected in each state and display a corresponding detection result, and the detection result is used for indicating whether the equipment to be detected is normal in different states.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an electric bicycle controller detection device which characterized in that, electric bicycle controller detection device includes: the device comprises a detection main module, a current detection module and a control processing module;

2. The electric power-assisted vehicle controller detection device of claim 1, wherein a second control end of the control processing module is used for connecting the device to be detected;

the control processing module is further configured to output a first electrical signal according to the first voltage, output a second electrical signal according to the second voltage, and output a third electrical signal according to the third voltage, where the first electrical signal is used to trigger the device to be detected to switch from a standby state to a power-on no-load state, the second electrical signal is used to trigger the device to be detected to switch from the power-on no-load state to the power-on loaded state, and the third electrical signal is used to trigger the device to be detected to switch from the power-on loaded state to the standby state.

3. The electric vehicle controller testing device according to claim 1, wherein the testing main module includes a field effect transistor, a first resistor, a second resistor, and a conducting circuit;

the second end of the second resistor is grounded;

4. The electric scooter controller detecting device of claim 3, wherein the conducting circuit comprises a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first transistor, a second transistor, a third transistor, a fourth transistor;

5. The electric booster vehicle controller detection device of claim 1, wherein the current detection module comprises: the power-off static current detection module, the power-on no-load current detection module and the load current detection module;

6. The electric vehicle controller assist detection device of claim 5, wherein the shutdown quiescent current detection module includes a first gain resistor, a seventh resistor, a first capacitor, a first amplification device;

7. The electric vehicle controller assistant detection device according to claim 5, wherein the power-on no-load current detection module comprises a second gain resistor, an eighth resistor, a second capacitor and a second amplification device;

a first end of the eighth resistor is connected with a first output end of the detection main module, a second end of the eighth resistor is respectively connected with a first end of the second amplifying device and a first polar plate of the second capacitor, a second polar plate of the second capacitor is connected with a second end of the second amplifying device, a third end of the second amplifying device is connected with a fourth end of the second amplifying device through the second gain resistor, and a fifth end of the second amplifying device is connected with a second input end of the control processing module;

the power-on no-load current detection module also comprises a second follower;

8. The electric vehicle controller detection device of claim 5, wherein the load current detection module comprises a third gain resistor, a ninth resistor, a third capacitor, a third amplification device;

the load current detection module further comprises a third follower;

9. The electric vehicle controller detection device according to claim 2, further comprising: starting the control module;

10. The electric vehicle controller detection apparatus of any one of claims 1-9, wherein the electric vehicle controller detection apparatus further comprises a power module;