Battery sleep wake-up circuit, power management system and power-assisted bicycle

Abstract

The embodiments of the present invention relate to the technical field of power-assisted bicycles, and specifically to a battery dormancy wake-up circuit, a power management system, and a power-assisted bicycle. The embodiments of the present invention innovatively provide a dormant battery module and a battery dormancy wake-up circuit on a power-assisted bicycle. Among them, the battery dormancy wake-up circuit is provided with an activation circuit, a steady-state enabling circuit, and a trigger circuit, and both the steady-state enabling circuit and the trigger circuit are enabled with the activation circuit to control the wake-up of the battery module through the activation circuit. The steady-state enabling circuit is used to receive the signal from the power supply output end of the battery module to control the electrical signal of the enabling end; the trigger circuit is used to receive an input signal and control the activation circuit to be turned on when the steady-state enabling circuit fails according to the input signal. Thereby, the battery module of the power-assisted bicycle is awakened.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of power-assisted bicycles, and in particular to a battery sleep-wake-up circuit, a power management system and a power-assisted bicycle. Background Art

[0002] In the field of power-assisted bicycles, power-assisted bicycles are a new type of two-wheeled vehicle, a type of bicycle, which uses batteries as an auxiliary power source, is equipped with a motor, and has a power-assisted system. It is a new type of transportation tool that can realize the integration of human riding and motor assistance. In the prior art, due to the limitations of the power-assisted bicycle structure, it is often only necessary to use the switch on the power-assisted bicycle to supply power to the outside. However, with the increase in the functions of the power-assisted bicycle system, the battery on the power-assisted bicycle is now difficult to achieve low-power operation due to the limited body structure and battery capacity of the bicycle, resulting in high power consumption of the system operation in the offline state, which has a great impact on the battery life of the vehicle. Summary of the invention

[0003] In view of the above problems, the embodiments of the present invention provide a battery sleep wake-up circuit, a power management system and a power-assisted bicycle, which solve the problem that the system consumes a lot of power when operating in an offline state, which has a significant impact on the battery life of the vehicle.

[0004] First,

[0005] The present invention provides a battery sleep wake-up circuit, which is applied to a power-assisted bicycle with a battery module. The circuit comprises:

[0006] An activation circuit, comprising a first end, a second end, and an enabling end, wherein the first end is connected to the control input end of the battery module, and the second end is grounded;

[0007] A steady-state enabling circuit, connected to the enabling terminal, for receiving a signal from the power supply output terminal of the battery module to control an electrical signal from the enabling terminal;

[0008] and a trigger circuit connected to the enable terminal, for receiving an input signal and controlling the activation circuit to be turned on when the steady-state enable circuit fails according to the input signal.

[0009] In some optional embodiments, the activation circuit includes a first MOS tube, a first resistor, and a second resistor;

[0010] The gate of the first MOS tube is an enable terminal, the source is a first terminal, and the drain is a second terminal; the gate and source of the first MOS tube are also connected to a first resistor and a second resistor respectively, and the other ends of the first resistor and the second resistor are connected to the control input terminal of the battery module respectively.

[0011] In some optional embodiments, the steady-state enabling circuit is provided with a first input terminal, and the first input terminal is connected to the power supply output terminal of the battery module; when the battery module is working, the power supply output terminal of the battery module outputs a high level so that the steady-state enabling circuit maintains the stability of the electrical signal of the enabling terminal; when the battery module is not working, the power supply output terminal of the battery module outputs a low level so that the steady-state enabling circuit is disabled.

[0012] In some optional embodiments, the steady-state enabling circuit includes a triode, a second MOS transistor, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor;

[0013] The first input end is connected to the third resistor, the fourth resistor and the fifth resistor respectively, and the other end of the third resistor is connected to the base of the transistor and the sixth resistor;

[0014] The collector of the triode is connected to the gate of the second MOS tube and the fourth resistor, and the emitter is grounded;

[0015] The source of the second MOS tube is connected to the fifth resistor, and the drain is connected to the enable terminal; the other end of the sixth resistor is grounded.

[0016] In some optional embodiments, the trigger circuit is provided with a second input terminal, which is connected to an input module and obtains an input signal; when the steady-state enabling circuit fails, the trigger circuit turns on the activation circuit according to the input signal.

[0017] In some optional embodiments, the trigger circuit includes a first capacitor, a second capacitor, a third MOS transistor, a seventh resistor, and an eighth resistor;

[0018] The second input end is connected to the first capacitor and the second capacitor respectively, the other end of the first capacitor is connected to the gate of the third MOS tube and the seventh resistor, the drain of the third MOS tube is connected to the enable end through the eighth resistor, and the drain is grounded; the other end of the second capacitor is connected to the drain of the third MOS tube, and the other end of the seventh resistor is grounded.

[0019] In some optional embodiments, the input module is a touch display or a software monitoring module.

[0020] In some optional embodiments, the first MOS tube and the second MOS tube are PMOS tubes, the third MOS tube is an NMOS tube; and the transistor is a PNP transistor.

[0021] First,

[0022] The present invention provides a power management system, comprising the above-mentioned battery sleep and wake-up circuit, a battery module, and at least one input module, wherein the battery sleep and wake-up circuit is connected to the input module and the battery module respectively, and the battery sleep and wake-up circuit controls the power supply of the battery module according to the input signal of the input module.

[0023] First,

[0024] The present invention provides a power-assisted bicycle, comprising the above-mentioned power management system.

[0025] Compared with the prior art, the beneficial effect of the present invention is that: the embodiment of the present invention innovatively provides a dormant battery module and a battery dormant wake-up circuit on the power-assisted bicycle. Among them, the battery dormant wake-up circuit is provided with an activation circuit, a steady-state enabling circuit and a trigger circuit, and both the steady-state enabling circuit and the trigger circuit are enabled with the activation circuit to control the wake-up of the battery module through the activation circuit. The steady-state enabling circuit is used to receive the signal from the power supply output end of the battery module to control the electrical signal of the enabling end; the trigger circuit is used to receive the input signal and control the activation circuit to be turned on when the steady-state enabling circuit fails according to the input signal. Thereby, the battery module of the power-assisted bicycle is awakened.

[0026] The circuit structure of the present application is simple, and the circuit components are small in size and can be integrated on the power-assisted bicycle. The power-assisted bicycle can be offline, the battery module can be in dormancy or low-power operation, and the power loss of the vehicle can be greatly reduced when it is not in the riding state, thereby improving the endurance of the power-assisted bicycle.

[0027] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0029] Figure 1 A schematic diagram of the structure of a dual battery switching circuit provided by the present invention is shown;

[0030] Figure 2 The circuit principle of the dual battery switching circuit provided by the present invention is shown Figure 1

[0031] Figure 3 The circuit principle of the dual battery switching circuit provided by the present invention is shown Figure 2 .

[0032] in,

[0033] 110, activation circuit; 120, steady-state enabling circuit; 130, trigger circuit; BAT, battery module; GND, power ground; V+, first input terminal; ACC&KEY, second input terminal; BAT_RX, control input terminal;

[0034] Q1, first MOS tube; Q2, second MOS tube; Q3, third MOS tube; Q4, triode; R1, first resistor; R2, second resistor; R3, third resistor; R4, fourth resistor; R5, fifth resistor; R6, sixth resistor; R7, seventh resistor; R8, eighth resistor; C1, first capacitor; C2, second capacitor;

[0035] 310. Battery sleep wake-up circuit; 320. Input module. DETAILED DESCRIPTION

[0036] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0037] Embodiment 1:

[0038] Figure 1 The present invention shows an embodiment of a battery sleep wake-up circuit, which is applied to a power-assisted bicycle with a battery module BAT. The circuit includes an activation circuit 110, a steady-state enabling circuit 120, and a trigger circuit 130. The activation circuit 110 is provided with a first end, a second end, and an enabling end. The first end is connected to the control input end BAT_RX of the battery module BAT, and the second end is grounded; the steady-state enabling circuit 120 is enabledly connected to the enabling end, and is used to receive a signal from the power supply output end of the battery module BAT to control the electrical signal of the enabling end; the trigger circuit 130 is connected to the enabling end, and is used to receive an input signal and control the activation circuit 110 to be turned on when the steady-state enabling circuit 120 fails according to the input signal.

[0039] The embodiment of the present invention innovatively provides a dormant battery module BAT and a battery dormant wake-up circuit on the power-assisted bicycle. The battery dormant wake-up circuit is provided with an activation circuit 110, a steady-state enabling circuit 120 and a trigger circuit 130. Both the steady-state enabling circuit 120 and the trigger circuit 130 are enabled and connected with the activation circuit 110 to control the awakening of the battery module BAT through the activation circuit 110. The steady-state enabling circuit 120 is used to receive the signal from the power supply output end of the battery module BAT to control the electrical signal of the enabling end; the trigger circuit 130 is used to receive the input signal and control the activation circuit 110 to turn on when the steady-state enabling circuit 120 fails according to the input signal. Thereby, the battery module BAT of the power-assisted bicycle is awakened.

[0040] The circuit structure of the present application is simple, and the circuit components are small in size and can be integrated on the power-assisted bicycle. The power-assisted bicycle can be in an offline state, and the battery module BAT can be in a dormant or low-power operation state, which can greatly reduce the power loss of the vehicle when it is not riding, thereby improving the endurance of the power-assisted bicycle.

[0041] Figure 2 The present invention shows a specific circuit principle of a battery sleep wake-up circuit. Specifically, the activation circuit 110 includes a first MOS tube Q1, a first resistor R1, and a second resistor R2; the gate of the first MOS tube Q1 is an enable terminal, the source is a first terminal, and the drain is a second terminal; the gate and source of the first MOS tube Q1 are also connected to the first resistor R1 and the second resistor R2, respectively, and the other ends of the first resistor R1 and the second resistor R2 are respectively connected to the control input terminal BAT_RX of the battery module BAT. In this embodiment, the first MOS tube Q1 is a PMOS tube. The activation circuit 110 is connected to the control input terminal BAT_RX of the battery module BAT, and the battery module BAT is awakened by lowering the voltage of the control input terminal BAT_RX, so that the battery module BAT mechanically outputs power to the outside. The first resistor R1 and the second resistor R2 are used for voltage division and current limiting.

[0042] In some optional embodiments, the steady-state enabling circuit 120 is provided with a first input terminal V+, and the first input terminal V+ is connected to the power supply output terminal of the battery module BAT; when the battery module BAT is working, the power supply output terminal of the battery module BAT outputs a high level so that the steady-state enabling circuit 120 maintains the electrical signal of the enabling terminal stable; when the battery module BAT is not working, the power supply output terminal of the battery module BAT outputs a low level so that the steady-state enabling circuit 120 fails.

[0043] Specifically, the steady-state enabling circuit 120 includes a transistor Q4, a second MOS transistor Q2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6; the first input terminal V+ is connected to the third resistor R3, the fourth resistor R4, and the fifth resistor R5 respectively, and the other end of the third resistor R3 is connected to the base of the transistor Q4 and the sixth resistor R6; the collector of the transistor Q4 is connected to the gate of the second MOS transistor Q2 and the fourth resistor R4, and the emitter is grounded; the source of the second MOS transistor Q2 is connected to the fifth resistor R5, and the drain is connected to the enabling terminal; the other end of the sixth resistor R6 is grounded.

[0044] In this embodiment, the second MOS transistor Q2 is a PMOS transistor, and the third MOS transistor Q3 is an NMOS transistor. When the first input terminal V+ has a voltage input, the voltage input is also the voltage of the external power supply of the battery module BAT; after the voltage is divided by the third resistor R3, the fourth resistor R4, and the fifth resistor R5, the transistor Q4 is turned on and the gate voltage is pulled down, so that the second MOS transistor Q2 is turned on, and the gate of the first MOS transistor Q1 is at a high level, so that the activation circuit 110 is in a stable and inactive state. When the battery module BAT is dormant, the voltage of the first input terminal V+ is pulled down, so that the transistor Q4 is turned off, the second MOS transistor Q2 is turned off, and the steady-state enabling circuit 120 is in a failed state.

[0045] In some optional embodiments, the trigger circuit 130 is provided with a second input terminal ACC&KEY, which is connected to the input module 320 and obtains an input signal; when the steady-state enabling circuit 120 fails, the trigger circuit 130 turns on the activation circuit 110 according to the input signal. The trigger circuit 130 includes a first capacitor C1, a second capacitor C2, a third MOS tube Q3, a seventh resistor R7, and an eighth resistor R8; the second input terminal ACC&KEY is connected to the first capacitor C1 and the second capacitor C2 respectively, the other end of the first capacitor C1 is connected to the gate of the third MOS tube Q3 and the seventh resistor R7, the drain of the third MOS tube Q3 is connected to the enabling terminal through the eighth resistor R8, and the drain is grounded; the other end of the second capacitor C2 is connected to the drain of the third MOS tube Q3, and the other end of the seventh resistor R7 is grounded.

[0046] In this embodiment, the third MOS tube Q3 is an NMOS tube. When the second output terminal receives an input signal, that is, the second input terminal ACC&KEY is turned on, the voltage of the first capacitor C1 and the second capacitor C2 is released, so that the third MOS tube Q3 is turned on, and the MOS tube voltage of the first MOS tube Q1 is pulled down, so that the first MOS tube Q1 is turned on, so that the control input terminal BAT_RX signal of the battery module BAT is pulled down, so that the battery module BAT is activated and re-outputs power. The first capacitor C1 and the second capacitor C2 are used for energy storage output, and the seventh resistor R7 and the eighth resistor R8 are used for voltage division.

[0047] In some optional embodiments, the input module 320 is a touch display or a software monitoring module. The input module 320 can be key information on the touch display or a software monitoring module. When it detects that the battery module BAT needs to be powered, it sends a signal to the trigger circuit 130 through the second input terminal ACC&KEY, and turns on the first MOS tube Q1 to wake up the battery module BAT for power supply.

[0048] Embodiment 2,

[0049] See also Figure 3 The present invention provides a power management system, including the battery dormancy wake-up circuit 310 of embodiment 1, a battery module BAT, and at least one input module 320, wherein the battery dormancy wake-up circuit 310 is connected to the input module 320 and the battery module BAT respectively, and the battery dormancy wake-up circuit 310 controls the battery module BAT to supply power according to the input signal of the input module 320. In this embodiment, the battery dormancy wake-up circuit can be part of the power management system, and the power management system includes the battery dormancy wake-up circuit 310, the battery module BAT, and at least one input module 320, and can also include various levels of buck-boost circuits, and modules connected to various power modules. Specifically, when the power-assisted bicycle is in a stationary state, that is, the motor is not driven. Other circuit components of the power-assisted bicycle enter the low-power module, and low-power power can be supplied by the power management system, and when the input signal is received, the battery module BAT is activated to supply power normally. In addition, any part of the power module of the power-assisted bicycle can also be set to a dormant state and awakened by receiving an input signal. The power management system can be implemented by any model of power management chip.

[0050] At the same time, the power management system can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or may contain one or more servers, data centers and other data storage devices that can be integrated with a medium. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0051] Embodiment 3,

[0052] The present invention provides a power-assisted bicycle, comprising the above-mentioned power management system. In this embodiment, the embodiment of the present invention innovatively provides a dormant battery module BAT and a battery dormant wake-up circuit on the power-assisted bicycle. Among them, the battery dormant wake-up circuit is provided with an activation circuit 110, a steady-state enabling circuit 120 and a trigger circuit 130, and the steady-state enabling circuit 120 and the trigger circuit 130 are both enabled and connected with the activation circuit 110 to control the awakening of the battery module BAT through the activation circuit 110. The steady-state enabling circuit 120 is used to receive the signal control enable end of the power supply output end of the battery module BAT; the trigger circuit 130 is used to receive the input signal and control the activation circuit 110 to turn on when the steady-state enabling circuit 120 fails according to the input signal. Thereby realizing the awakening of the battery module BAT of the power-assisted bicycle.

[0053] The circuit structure of the present application is simple, and the circuit components are small in size and can be integrated on the power-assisted bicycle. The power-assisted bicycle can be offline, the battery module can be in dormancy or low-power operation, and the power loss of the vehicle can be greatly reduced when it is not in the riding state, thereby improving the endurance of the power-assisted bicycle.

[0054] The algorithms or displays provided herein are not inherently related to any particular computer, virtual system or other device. In addition, the embodiments of the present invention are not directed to any particular programming language.

[0055] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0056] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and further may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive.

[0057] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A battery sleep wake-up circuit, characterized in that: Applied to a power-assisted bicycle with a battery module, the battery sleep wake-up circuit comprises: An activation circuit, comprising a first end, a second end, and an enabling end, wherein the first end is connected to the control input end of the battery module, and the second end is grounded; A steady-state enabling circuit, connected to the enabling terminal, for receiving a signal from the power supply output terminal of the battery module to control an electrical signal from the enabling terminal; and a trigger circuit connected to the enable terminal, for receiving an input signal and controlling the activation circuit to be turned on when the steady-state enable circuit fails according to the input signal; Wherein, the steady-state enabling circuit is provided with a first input terminal, and the first input terminal is connected to the power supply output terminal of the battery module; when the battery module is working, the power supply output terminal of the battery module outputs a high level, so that the steady-state enabling circuit maintains the electrical signal of the enabling terminal stable; when the battery module is not working, the power supply output terminal of the battery module outputs a low level, so that the steady-state enabling circuit fails; The steady-state enabling circuit includes a triode, a second MOS tube, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor; the first input end is connected to the third resistor, the fourth resistor, and the fifth resistor respectively, and the other end of the third resistor is connected to the base of the triode and the sixth resistor; the collector of the triode is connected to the gate of the second MOS tube and the fourth resistor, and the emitter is grounded; the source of the second MOS tube is connected to the fifth resistor, and the drain is connected to the enabling end; the other end of the sixth resistor is grounded.

2. The battery sleep wake-up circuit according to claim 1, characterized in that: The activation circuit includes a first MOS tube, a first resistor, and a second resistor; The gate of the first MOS tube is an enable terminal, the source is a first terminal, and the drain is a second terminal; the gate and source of the first MOS tube are also connected to a first resistor and a second resistor respectively, and the other ends of the first resistor and the second resistor are connected to the control input terminal of the battery module respectively.

3. The battery sleep wake-up circuit according to claim 2, characterized in that: The trigger circuit is provided with a second input terminal, which is connected to the input module and obtains an input signal; when the steady-state enabling circuit fails, the trigger circuit turns on the activation circuit according to the input signal.

4. The battery sleep wake-up circuit according to claim 3, characterized in that: The trigger circuit includes a first capacitor, a second capacitor, a third MOS tube, a seventh resistor, and an eighth resistor; The second input end is connected to the first capacitor and the second capacitor respectively, the other end of the first capacitor is connected to the gate of the third MOS tube and the seventh resistor, the drain of the third MOS tube is connected to the enable end through the eighth resistor, and the drain is grounded; the other end of the second capacitor is connected to the drain of the third MOS tube, and the other end of the seventh resistor is grounded.

5. The battery sleep wake-up circuit according to claim 4, characterized in that: The input module is a touch display or a software monitoring module.

6. The battery sleep wake-up circuit according to claim 5, characterized in that: The first MOS tube and the second MOS tube are PMOS tubes, the third MOS tube is an NMOS tube; and the triode is a PNP triode.

7. A power management system, characterized in that: It includes the battery sleep wake-up circuit according to any one of claims 1 to 6, a battery module, and at least one input module, wherein the battery sleep wake-up circuit is connected to the input module and the battery module respectively, and the battery sleep wake-up circuit controls the power supply of the battery module according to the input signal of the input module.

8. A power-assisted bicycle, characterized in that: Includes the power management system as described in claim 7.

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