Vehicle handle heating power control method and device, and electric two-wheeled vehicle

Abstract

The application discloses a vehicle handle heating power control method and device and an electric two-wheeled vehicle, and is applied to the technical field of vehicle control, and aims to solve the problem of energy waste in vehicle handle heating power control in the prior art. Specifically, potential signals or resistance value signals of electric resistance wires in a left handle body and electric resistance wires in a right handle body are acquired; for the electric resistance wires in the handle body of each side, a current holding state of the handle body of the corresponding side is determined according to the deviation between the electric parameter signals collected in a plurality of continuous detection periods and a reference value of a non-contact state; and the current heating power of the electric resistance wires in the left handle body and the current heating power of the electric resistance wires in the right handle body are independently adjusted according to the current holding state of the left handle body and the current holding state of the right handle body, respectively. The output of the current heating power is adapted to the actual holding condition of the handle body, and the energy saving of the vehicle handle heating power control is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a method and device for controlling the heating power of vehicle handlebars and an electric two-wheeler. Background Technology

[0002] With the increasing popularity of electric two-wheelers, rider comfort in cold weather has become a growing concern. As a key component in direct contact between the rider and the vehicle, the handlebars' temperature directly impacts the riding experience. Therefore, the technology of incorporating resistance wires within the handlebars and heating them by passing electricity through these wires is widely used.

[0003] Currently, the heating power control method for vehicle handlebars primarily involves the rider manually selecting the heating level via buttons or a gear switch. The controller then continuously energizes the resistance wire according to the selected heating power level. However, this method does not consider the actual gripping situation of the handlebars. While the vehicle is in motion, the rider may temporarily release one or both handlebars due to operating turn signals, braking, or adjusting posture. Even then, the resistance wire continues to output the original heating power, regardless of the actual gripping situation. The heating power output when the handlebars are not being used effectively results in energy waste. Therefore, the existing technology for controlling vehicle handlebar heating power suffers from energy waste. Summary of the Invention

[0004] This application provides a method, device, and electric two-wheeler for controlling the power of vehicle handlebar heating, in order to solve the problem of energy waste in the existing technology of vehicle handlebar heating power control.

[0005] The technical solutions provided in this application are as follows: On one hand, this application provides a method for controlling the heating power of a vehicle handlebar. The vehicle handlebar includes a left handlebar body and a right handlebar body, and resistance wires are respectively disposed within the left handlebar body and the right handlebar body. The method includes: Obtain the electrical parameter signals of the resistance wire inside the left handle body and the resistance wire inside the right handle body; wherein, the electrical parameter signal is the potential signal or resistance value signal of the resistance wire; For the resistance wire inside the handle body on each side, the current gripping state of the corresponding handle body is determined based on the deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the reference value in the non-contact state. Based on the current gripping state of the left and right handlebars, the current heating power of the resistance wires in the left and right handlebars can be adjusted independently.

[0006] Optionally, the detection cycle includes a heating phase and a detection phase; acquiring the electrical parameter signals of the resistance wire inside the left handle body and the resistance wire inside the right handle body includes: During the heating phase, the resistance wire inside the left-hand handle is energized and heated according to the current heating power of the resistance wire inside the right-hand handle, and the resistance wire inside the right-hand handle is energized and heated according to the current heating power of the resistance wire inside the right-hand handle. During the testing phase, the control stops energizing and heating the resistance wires inside the left and right handle bodies, and simultaneously acquires the electrical parameter signals of the resistance wires inside the left and right handle bodies.

[0007] Optionally, the current gripping state of the corresponding handle body is determined based on the deviation between the electrical parameter signals collected over multiple consecutive detection cycles and the reference values ​​in the non-contact state, including: Based on the signal deviation between the signal value of the electrical parameter signal collected in each detection cycle and the benchmark reference value, it is determined whether the corresponding handle body is held in that detection cycle. If it is determined that the corresponding side handle body is not being held within a consecutive preset first number of detection cycles, the current holding state of the corresponding side handle body is determined to be unheld; If the corresponding side handle body is determined to be held within a consecutive preset first number of detection cycles, the current holding state of the corresponding side handle body is determined to be held.

[0008] Optionally, based on the current gripping state of the left and right handlebars, the current heating power of the resistance wires in the left and right handlebars can be adjusted independently, including: When the left hand switches the current holding state of the main body from the first state to the second state, if the second state continues for a preset time, the current heating power of the resistance wire in the main body of the left hand is adjusted according to the heating power corresponding to the second state; if the second state returns to the first state within the preset time, the current heating power of the resistance wire in the main body of the left hand is maintained. When the right hand switches the current holding state of the main body from the first state to the second state, if the second state continues for a preset duration, the current heating power of the resistance wire in the main body is adjusted according to the heating power corresponding to the second state; if the second state returns to the first state within the preset duration, the current heating power of the resistance wire in the main body is maintained.

[0009] Optionally, before acquiring the electrical parameter signals of the resistance wires in the left and right handle bodies, the following steps are also included: When the vehicle is powered on, the control enters the initialization phase; the initialization phase corresponds to the fact that the resistance wires in the left handlebar body and the right handlebar body are not energized and heated, and the left handlebar body and the right handlebar body are in a non-contact state. Multiple electrical parameter signals of the resistance wire inside the left handle body are acquired, and the average value of the multiple electrical parameter signals of the resistance wire inside the left handle body is processed to obtain the reference value corresponding to the left handle body. Multiple electrical parameter signals of the resistance wire inside the right-hand handle body are acquired, and the average value of the multiple electrical parameter signals of the resistance wire inside the right-hand handle body is processed to obtain the reference value corresponding to the right-hand handle body.

[0010] Optionally, the method for controlling the heating power of the vehicle handlebars also includes: Obtain the surface temperature of the left-hand handle and the surface temperature of the right-hand handle; When the surface temperature of either the left or right handlebar exceeds a preset temperature threshold, the current heating power of the resistance wire inside the corresponding handlebar is reduced.

[0011] Optionally, the method for controlling the heating power of the vehicle handlebars also includes: If no electrical parameter signal is obtained within a consecutive preset second number of detection cycles, or if the signal value of the obtained electrical parameter signal is greater than a preset abnormal threshold, a detection fault is determined to have occurred, and the heating of the resistance wires in the left and right handle bodies is stopped.

[0012] On the other hand, this application provides a vehicle handlebar heating power control device, including: a left handlebar body and a right handlebar body, with resistance wires respectively disposed in the left handlebar body and the right handlebar body. The device includes: a first detection circuit, a second detection circuit, a first heating module, a second heating module and a control module. The first detection circuit is electrically connected to the resistance wire inside the left handle body; the first detection circuit is used to collect the electrical parameter signal of the resistance wire inside the left handle body. The second detection circuit is electrically connected to the resistance wire inside the right-hand handle body; the second detection circuit is used to collect the electrical parameter signal of the resistance wire inside the right-hand handle body. The first heating module is electrically connected to the resistance wire inside the left handle body. The first heating module is used to heat the resistance wire inside the left handle body. The second heating module is electrically connected to the resistance wire inside the right hand handle body. The second heating module is used to heat the resistance wire inside the right hand handle body. The control module is electrically connected to the first detection circuit, the second detection circuit, the first heating module, and the second heating module, respectively. The control module is used to acquire the electrical parameter signals of the resistance wires in the left and right handle bodies. The electrical parameter signals are the potential signals or resistance value signals of the resistance wires. For the resistance wires in the handle bodies on each side, the current gripping state of the corresponding handle body is determined based on the deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the reference value of the non-contact state. Based on the current gripping state of the left and right handle bodies, the current heating power of the resistance wires in the left and right handle bodies is adjusted independently.

[0013] Optionally, the first detection circuit includes: a first resistor, a second resistor, and a switching switch; The fixed end of the switch is connected to the first end of the resistance wire inside the left handle body; the first selection end of the switch is connected to the first heating module; the second selection end of the switch is connected to the detection power supply; and the control end of the switch is connected to the control module.

[0014] The first end of the first resistor is connected to the second end of the resistance wire inside the left hand body, and the second end of the first resistor is connected to ground; the first end of the second resistor is connected to the first end of the resistance wire inside the left hand body, and the second end of the second resistor is connected to the first end of the first resistor and the control module.

[0015] On the other hand, this application provides an electric two-wheeled vehicle, including: a vehicle body and the aforementioned vehicle handlebar heating power control device; The handlebars of the vehicle are equipped with a left handlebar body and a right handlebar body at both ends, and a resistance wire is installed inside the left handlebar body and the right handlebar body respectively. The resistance wires inside the left handlebar body and the right handlebar body are electrically connected to the vehicle handlebar heating power control device.

[0016] The beneficial effects of the embodiments of this application are as follows: In this application, resistance wires are respectively installed in the left and right handlebar bodies. By acquiring electrical parameter signals such as potential signals or resistance values ​​of the resistance wires, grip detection can be achieved using existing components without the need for additional independent sensing elements, thus simplifying the internal structure of the handlebars. For the resistance wires in each handlebar body, the current grip state is determined based on the deviation between the electrical parameter signals collected over multiple consecutive detection cycles and the reference values ​​in the non-contact state. Signal fluctuations in a single detection cycle will not directly cause changes in the current grip state, improving the accuracy and reliability of the determination results and avoiding misjudging temporary fluctuations as changes in grip state. The current heating power of the resistance wires on both sides is independently adjusted according to the current grip state of each handlebar body, so that the current heating power of the resistance wires on both sides is adjusted according to the current grip state of the corresponding handlebar body. The output of the current heating power is adapted to the actual grip situation of the handlebar body, avoiding energy waste caused by continuous output of current heating power unrelated to the grip state, and improving the energy efficiency of the vehicle's handlebar heating power control.

[0017] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic flowchart of the vehicle handlebar heating power control method in the embodiments of this application; Figure 2 This is a schematic diagram illustrating the specific process of determining the current holding state in the embodiments of this application; Figure 3 This is a schematic diagram illustrating the specific process of determining the reference value in the embodiments of this application; Figure 4 This is a schematic diagram illustrating the specific process of the over-temperature protection method in the embodiments of this application; Figure 5 This is a functional structure diagram of the vehicle handlebar heating power control device in the embodiments of this application; Figure 6 This is a schematic diagram of the circuit structure of the first detection circuit in the embodiments of this application.

[0019] Icons: 1-Vehicle handlebar heating power control device; 2-First detection circuit; 3-Second detection circuit; 4-First heating module; 5-Second heating module; 6-Control module; 7-Left handlebar body; 8-Right handlebar body; R-Heating wire; R1-First resistor; R2-Second resistor; S-Switch. Detailed Implementation

[0020] To make the objectives, technical solutions, and beneficial effects of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that the terms "first," "second," etc., used in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0022] This application provides a method for controlling the heating power of a vehicle handlebar. The vehicle handlebar includes a left handlebar body and a right handlebar body, and resistance wires are respectively disposed within the left and right handlebar bodies. (See reference...) Figure 1 As shown, the general flow of the vehicle handlebar heating power control method provided in this application embodiment is as follows: Step 101: Obtain the electrical parameter signals of the resistance wire inside the left handle body and the resistance wire inside the right handle body; wherein, the electrical parameter signal is the potential signal or resistance value signal of the resistance wire.

[0023] In practical applications, the left and right handlebar bodies refer to the components on the left and right ends of the vehicle's steering handlebars for the user to grip. Each handlebar body contains a resistance wire, which heats up when energized, thus heating the corresponding side of the handlebar body. The electrical parameter signal refers to the signal corresponding to an electrical quantity that characterizes the conductivity state of the detection circuit containing the resistance wire. Specifically, the electrical parameter signal is the potential signal or resistance value signal of the resistance wire: the potential signal refers to the voltage signal at the sampling point of the resistance wire; the resistance value signal refers to the signal characterizing the equivalent resistance of the detection circuit, calculated by converting the voltage signal at the sampling point of the resistance wire into the resistance value of the sampling resistor connected in series in the detection circuit containing the resistance wire. It should be noted that the electrical parameter signal in this application can reflect whether the handlebar is being held by a person. The mechanism is as follows: when the rider's body is in contact with the vehicle body, the human body potential is close to the vehicle's ground potential; when the hand touches the handlebar, the human body impedance couples through the insulating surface of the handlebar to the detection circuit where the resistance wire is located, causing a change in the equivalent impedance of the detection circuit, and the potential at the sampling point and the equivalent resistance of the detection circuit change accordingly. The coupling between the human body impedance and the detection circuit includes resistive coupling and capacitive coupling: resistive coupling refers to the human body resistance being incorporated into the detection circuit through the leakage path of the insulating surface; capacitive coupling refers to the distributed capacitance formed between the human body and the resistance wire through the insulating surface being incorporated into the detection circuit.

[0024] It should also be noted that the changes in the electrical parameter signals in this application do not originate from changes in the resistance value of the resistance wire itself due to temperature changes, nor from deformation of the resistance wire caused by gripping pressure. On the one hand, the nickel-chromium alloy material used for the resistance wire has a low temperature coefficient of resistance, and the duration for acquiring electrical parameter signals in each detection cycle is on the order of milliseconds. The heat dissipation effect of the human hand on the resistance wire temperature during this duration is negligible. On the other hand, the resistance wire is wound in a spiral wiring groove inside the handle body and fixed by thermally conductive silicone. After the gripping pressure is dispersed and buffered by the insulating surface layer of the handle body and the thermally conductive silicone, the axial strain transmitted to the resistance wire is extremely small. The resulting change in resistance value is below the resolution capability of the detection circuit and does not constitute an effective source of changes in the electrical parameter signals.

[0025] Step 102: For the resistance wire inside the handle body on each side, determine the current gripping state of the corresponding handle body based on the deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the reference value in the non-contact state.

[0026] In practical applications, the reference value for the non-contact state refers to a predetermined reference value for the electrical parameter signal when the handle body is in a non-contact state. The reference value includes the left-side voltage reference value, left-side resistance reference value, right-side voltage reference value, and right-side resistance reference value. The current grip state refers to whether the handle body is currently being gripped by a hand. The current grip state includes "gripped" and "not gripped." "Gripped" means the user's hand is currently gripping the corresponding side of the handle body; "not gripped" means the user's hand is not currently in contact with the corresponding side of the handle body. For the resistance wire within each side of the handle body, the electrical parameter signals collected over multiple consecutive detection cycles are compared with the reference value. The deviation between the two values ​​reflects whether the equivalent impedance of the detection circuit has changed, thereby determining the current grip state of the corresponding side of the handle body. It should be noted that the current gripping state of the left and right handlebars is determined independently and does not affect each other, in order to adapt to actual riding scenarios such as gripping with both hands, gripping with one hand, and gripping with neither hand. Since this method is executed cyclically according to the detection cycle, the electrical parameter signals are continuously collected, and the current gripping state is also refreshed and determined in real time, that is, the current gripping state is dynamically updated over time.

[0027] Step 103: Based on the current gripping state of the left and right handles, independently adjust the current heating power of the resistance wire in the left handle and the current heating power of the resistance wire in the right handle.

[0028] In practical applications, the current heating power refers to the heating power output to the corresponding resistance wire at the current moment. Independent adjustment means that the current heating power of the resistance wire in the left handlebar and the resistance wire in the right handlebar are determined and controlled separately. The current heating power on both sides can be the same or different, and the heating process on one side is not affected by the heating process on the other side. The correspondence between the current grip state and the current heating power is preset. This independent adjustment method adapts to various grip situations in actual riding: when gripping with both hands, the resistance wires on both sides are energized and heated according to their respective current heating power; when gripping with one hand, the current heating power on the gripped side and the ungripped side are determined according to the preset correspondence, and different current heating powers can be output on each side. Because the current heating power is dynamically adjusted according to the current grip state, the output of the current heating power adapts to the actual grip situation of the handlebar, avoiding continuous output of the current heating power unrelated to the grip state.

[0029] Specifically, since this method executes cyclically according to the detection cycle, the current grip state is refreshed in real time with each detection cycle, and the current heating power is dynamically adjusted accordingly. Within each detection cycle, the control module determines the current heating power corresponding to each resistance wire on both sides based on the current grip state of the left and right hands, and controls the corresponding resistance wire to be energized and heated according to the determined current heating power during the heating phase of that detection cycle. The current heating power can be adjusted using pulse width modulation (PWM), that is, the control module adjusts the average heating power of the resistance wire by adjusting the duty cycle of the pulse width modulation signal output to the resistance wire. The larger the duty cycle, the greater the average heating power of the resistance wire. The correspondence between the duty cycle and the current heating power can be pre-calibrated according to the resistance specifications of the resistance wire and the supply voltage.

[0030] In this way, resistance wires are installed in both the left and right handlebar bodies. By acquiring electrical parameter signals such as potential or resistance values ​​from these resistance wires, grip detection can be achieved using existing components, eliminating the need for additional independent sensing elements and simplifying the internal structure of the handlebars. For the resistance wires in each handlebar body, the current grip state is determined based on the deviation between the electrical parameter signals collected over multiple consecutive detection cycles and the reference values ​​in the non-contact state. Signal fluctuations in a single detection cycle do not directly cause changes in the current grip state, improving the accuracy and reliability of the determination results and avoiding misinterpreting temporary fluctuations as changes in grip state. The current heating power of the resistance wires on both sides is independently adjusted according to the current grip state of each handlebar body, ensuring that the current heating power of both resistance wires is adjusted according to the current grip state of the corresponding handlebar body. The output of the current heating power is adapted to the actual grip situation of the handlebar body, avoiding energy waste caused by continuous output of heating power unrelated to the grip state and improving the energy efficiency of the vehicle's handlebar heating power control.

[0031] In one possible implementation, the detection cycle includes a heating phase and a detection phase; acquiring the electrical parameter signals of the resistance wires in the left-hand handle body and the right-hand handle body includes: During the heating phase, the resistance wire inside the left-hand handle is energized and heated according to the current heating power of the resistance wire inside the right-hand handle, and the resistance wire inside the right-hand handle is energized and heated according to the current heating power of the resistance wire inside the right-hand handle. During the testing phase, the control stops energizing and heating the resistance wires inside the left and right handle bodies, and simultaneously acquires the electrical parameter signals of the resistance wires inside the left and right handle bodies.

[0032] In practical applications, since the same resistance wire serves as both a heating element and a holding detection element, and the power supply current required for heating is much greater than the excitation current required for detection, heating and detection cannot be performed simultaneously. Therefore, each detection cycle is divided into a heating phase and a detection phase, with the resistance wire being time-division multiplexed between the two phases. Specifically, during the heating phase, the resistance wire is connected to the heating circuit, and the control module controls the heating of the resistance wire according to the current heating power, for example, by adjusting the average heating power of the resistance wire using pulse width modulation. During the detection phase, the control module stops heating the resistance wire and switches it to the detection circuit. The detection power supply in the detection circuit forms a voltage divider circuit through the resistance wire, and the electrical parameter signals of the resistance wire are acquired simultaneously.

[0033] The detection circuit includes a resistor string and a detection power supply. The resistor string consists of at least two voltage-dividing resistors connected in series. The resistance wire is connected in parallel with one of the voltage-dividing resistors in the resistor string. The voltage-dividing nodes between adjacent voltage-dividing resistors in the resistor string serve as the sampling points for the resistance wire. The detection power supply is the power source used to provide excitation voltage to the detection circuit during the detection phase. The output current of the detection power supply is much smaller than the supply current of the heating circuit. For example, the detection power supply can be a reference voltage source. During the detection phase, the excitation voltage output by the detection power supply is applied to both ends of the resistor string: when there is no grip, the equivalent resistance of the arm into which the resistance wire is connected is determined, the voltage division ratio of the resistor string is determined, and the voltage at the sampling point is a determined value, corresponding to the reference value; when a person touches the handle body, the human body impedance is connected to the arm where the resistance wire is located, the equivalent resistance of the arm changes accordingly, the voltage division ratio of the resistor string changes, and the voltage at the sampling point deviates from the reference value. It should be noted that the arm into which the resistance wire is connected can be a voltage-dividing resistor located between the sampling point and the detection power supply in the resistor string, or it can be a voltage-dividing resistor located between the sampling point and ground. This application embodiment does not limit this.

[0034] Specifically, the electrical parameter signal of the resistance wire can be obtained using a potential detection method. The control module acquires the voltage signal relative to ground at the voltage divider node of the resistor string through an analog-to-digital converter (ADC), and uses the acquired voltage signal as the potential signal, which directly represents the potential at the voltage divider node. Alternatively, the control module can convert the voltage signal acquired at the voltage divider node with the resistance value of each voltage divider resistor in the resistor string to obtain the resistance value signal of the resistance wire, which represents the equivalent resistance of the detection circuit. The analog-to-digital converter (ADC) is a device used to convert analog voltage signals into digital signals. For example, the ADC can be a 12-bit or higher precision ADC. The ADC can be integrated into the control module or set up independently and electrically connected to the control module. Each voltage divider resistor in the resistor string can be a precision metal film resistor with an accuracy of 1%. It can also be understood that when the human body impedance is incorporated into the detection circuit, the potential at the voltage divider node and the equivalent resistance of the detection circuit will change accordingly. Therefore, both the potential signal and the resistance value signal can reflect whether the handle body is being held by a person. In specific implementations, either one can be chosen as the electrical parameter signal.

[0035] In this way, the same resistance wire heats up during the heating stage and is excited by the detection power supply for signal acquisition during the detection stage, realizing time-division multiplexing of the resistance wire between heating and detection; the detection power supply provides excitation during the detection stage, ensuring that the voltage divider circuit still has a definite excitation voltage after the power is turned off and the acquisition results of electrical parameter signals are stable and reliable.

[0036] In one possible implementation, the electrical parameter signal of the resistance wire can also be obtained by the following alternative methods: The first method is constant current detection. During the detection phase, a constant current is applied to the resistance wire; for example, the constant current can be set to 10mA. The voltage drop across the resistance wire is measured, and the resistance value of the wire is calculated based on the constant current and voltage drop, serving as the resistance signal. This method directly measures the resistance value, making the detection principle more direct and unaffected by excitation voltage fluctuations. However, it requires an additional constant current source circuit, and the constant current source operates continuously, resulting in slightly higher static power consumption.

[0037] The second method is frequency scanning detection. During the detection phase, a sweeping AC signal is injected into the resistance wire. For example, the sweeping range can be set to 1kHz to 100kHz. The impedance of the detection circuit changes with frequency, and the signal characterizing this impedance change is used as the resistance value signal. Human hand contact alters the RC characteristics of the detection circuit, causing a corresponding change in the resistance value signal. By analyzing the impedance change with frequency, human hand contact can be identified. This method has strong anti-interference capabilities and can distinguish between human hand contact and environmental interference, but it has higher circuit and algorithm complexity.

[0038] The third method is the bridge-balanced detection method. A resistance wire is used as one arm of a Wheatstone bridge, and three precision resistors are configured to form the bridge. Without contact, the Wheatstone bridge is balanced so that its output is zero. When a hand touches the bridge, the impedance change in the detection circuit disrupts the bridge's balance, and the differential voltage output is collected as the electrical parameter signal. This method has high detection sensitivity and strong common-mode interference immunity, but it requires precision resistors and calibration.

[0039] The fourth method is a single-wire detection method. One end of the resistance wire is connected to the detection circuit, and the other end is connected to the vehicle's metal frame. The vehicle's metal frame is used as the circuit, and the resistance change of the entire circuit is measured. The measured resistance value is used as the resistance signal. This method eliminates one lead wire, simplifying the wiring and making it suitable for retrofitting existing vehicle wiring harnesses. However, the detection circuit includes the frame resistance, which varies with temperature and corrosion, requiring dynamic calibration of the reference value.

[0040] It should be noted that, in all the above methods, when the human body impedance is incorporated into the detection circuit, the potential distribution and equivalent resistance of the detection circuit will change accordingly. Therefore, both the potential signal and the resistance signal can reflect whether the handle body is being held by a person. In specific implementation, either one can be selected as the electrical parameter signal.

[0041] In one possible implementation, see [reference] Figure 2 As shown, based on the deviation between the electrical parameter signals collected over multiple consecutive detection cycles and the reference values ​​in the non-contact state, the current gripping state of the corresponding handle body is determined, including: Step 201: Based on the signal deviation between the signal value of the electrical parameter signal collected in each detection cycle and the benchmark reference value, determine whether the corresponding handle body is being held in that detection cycle.

[0042] In practical applications, the signal value refers to the value of the electrical parameter signal. When the electrical parameter signal is a potential signal, the signal value is the voltage value relative to ground at the sampling point of the resistance wire. The sampling point of the resistance wire refers to the voltage divider node of the resistor string in the detection circuit. The resistor string consists of at least two voltage divider resistors connected in series, and the resistance wire is connected in parallel with one of the voltage divider resistors in the resistor string. When the electrical parameter signal is a resistance signal, the signal value is the equivalent resistance value of the arm containing the resistance wire, that is, the equivalent resistance value after the resistance wire and the voltage divider resistor of that arm in the resistor string are connected in parallel. When calculating the signal deviation, if the electrical parameter signal is a potential signal, the signal value on that side is compared with the corresponding voltage reference value on that side; that is, the left side is compared with the left voltage reference value, and the right side is compared with the right voltage reference value. If the electrical parameter signal is a resistance signal, the signal value on that side is compared with the corresponding resistance reference value on that side; that is, the left side is compared with the left resistance reference value, and the right side is compared with the right resistance reference value. The signal deviation is the absolute value of the difference between the signal value and the reference value. Specifically, within each detection cycle, if the signal deviation is greater than a preset judgment threshold, it is determined that the corresponding handle body is being held during that detection cycle; if the signal deviation is not greater than the preset judgment threshold, it is determined that the corresponding handle body is not being held during that detection cycle. The preset judgment threshold refers to a pre-set signal deviation threshold used to determine whether there is human hand contact. For example, the preset judgment threshold can be set to 3% to 10% of the reference value, preferably 5%. The preset judgment threshold is set according to the proportion of the reference value and is automatically adjusted as the reference value is re-established each time it is powered on, so as to adapt to changes in the inherent state of the detection circuit. The value of the preset judgment threshold should be greater than the maximum amplitude of the signal deviation caused by the inherent fluctuations of the detection circuit to avoid misjudging the inherent fluctuations as human hand contact, and should be less than the minimum amplitude of the signal deviation caused by human hand contact to avoid missed judgments.

[0043] Step 202: If it is determined that the corresponding side handle body is not held within a consecutive preset first number of detection cycles, the current holding state of the corresponding side handle body is determined to be unheld; if it is determined that the corresponding side handle body is held within a consecutive preset first number of detection cycles, the current holding state of the corresponding side handle body is determined to be held.

[0044] In practical applications, the preset first quantity refers to the number of consecutive detection cycles required to confirm the current gripping state. For example, the preset first quantity can be set to 3 to 5. Specifically, for each side of the handle body, the control module records the number of consecutive detection cycles that are judged as being gripped and the number of consecutive detection cycles that are judged as not being gripped: after each detection cycle completes the judgment in step 201, if the judgment result is gripped, the number of consecutive gripped is incremented by one, and the number of consecutive not gripped is cleared to zero; if the judgment result is not gripped, the number of consecutive not gripped is incremented by one, and the number of consecutive gripped is cleared to zero. When the number of consecutive gripped reaches the preset first quantity, the current gripping state of the corresponding side handle body is determined to be gripped; when the number of consecutive not gripped reaches the preset first quantity, the current gripping state of the corresponding side handle body is determined to be not gripped; during the period when neither of the two counts reaches the preset first quantity, the current gripping state remains unchanged. The counting and confirmation processes for the left-hand and right-hand grips are performed independently and do not affect each other. It should be noted that status confirmation is performed using a continuous set of preset detection cycles as a window, rather than directly confirming based on the judgment result of a single detection cycle. This is because the signal value of a single detection cycle is easily affected by factors such as power supply fluctuations and electromagnetic interference, which can cause fluctuations. Confirmation based on a single detection cycle may lead to misjudgments. Using multiple consecutive detection cycles with consistent judgments reduces the impact of occasional fluctuations on the status confirmation result. A larger preset value results in more reliable status confirmation, but takes longer; a smaller preset value results in more timely confirmation, but reliability decreases accordingly.

[0045] In this way, by first judging the signal deviation in a single cycle, and then confirming the state by the consistency of the judgment results within a continuous preset first number of detection cycles, the determination result of the current holding state is stable, and instantaneous interference will not cause frequent changes in the current holding state. At the same time, the count clearing and state maintenance mechanism ensures that the current holding state does not switch frequently when the judgment results fluctuate, which provides a basis for the stable adjustment of the current heating power in the future.

[0046] In one possible implementation, the current heating power of the resistance wire in the left handle body and the current heating power of the resistance wire in the right handle body are adjusted independently based on the current gripping state of the left handle body and the current gripping state of the right handle body, including: When the left hand switches the current holding state of the main body from the first state to the second state, if the second state continues for a preset time, the current heating power of the resistance wire in the main body of the left hand is adjusted according to the heating power corresponding to the second state; if the second state returns to the first state within the preset time, the current heating power of the resistance wire in the main body of the left hand is maintained. When the right hand switches the current holding state of the main body from the first state to the second state, if the second state continues for a preset duration, the current heating power of the resistance wire in the main body is adjusted according to the heating power corresponding to the second state; if the second state returns to the first state within the preset duration, the current heating power of the resistance wire in the main body is maintained.

[0047] In practical applications, the first state refers to the current gripping state before the switch, and the second state refers to the current gripping state after the switch. The preset duration is a pre-set duration used to confirm the validity of the state switch; for example, the preset duration can be set to 3s to 10s, preferably 5s. The heating power corresponding to the second state refers to the pre-set heating power corresponding to the current gripping state. Specifically, the first power refers to the pre-set heating power corresponding to the current gripping state of both handle bodies; for example, the first power is the maximum heating power, i.e., heating is performed at 100% power output. The second power refers to the pre-set heating power corresponding to the current gripping state of only one handle body; the second power is less than or equal to the first power. The correspondence between the current gripping state and the current heating power can be adjusted in the following two ways: The first adjustment method: Adjustments on both sides are independent. For the resistance wire inside each handle body, the current heating power of that side's resistance wire is adjusted only according to the current gripping state of that side's handle body: when the handle body is currently gripped, the current heating power of that side's resistance wire is adjusted to the first power; when the handle body is not gripped, the current heating power of that side's resistance wire is adjusted to zero. In this adjustment method, the second power equals the first power; that is, when either side is gripped, that side is energized and heated at the maximum heating power, and the gripping state of the other side does not affect the current heating power of that side.

[0048] The second adjustment method involves inter-adjustment of both sides. The current heating power of both sides is determined based on the current gripping state of the handle body: when both handle bodies are gripped, the current heating power of both resistance wires is adjusted to the first power; when only one handle body is gripped, the current heating power of the resistance wire on that side is adjusted to the second power, and the current heating power of the resistance wire on the other side is adjusted to zero; when both handle bodies are not gripped, the current heating power of both resistance wires is adjusted to zero. In this adjustment method, the second power is less than the first power; for example, the second power can be set to 60% of the first power.

[0049] It should be noted that in the second adjustment method, when only one side is gripped, the current heating power of that side is adjusted to a second power, which is lower than the first power. This is because the heating demand of the entire vehicle is lower in the single-hand grip scenario than in the two-hand grip scenario. Appropriately reducing the current heating power of the gripped side can further reduce power consumption while ensuring the heating effect of the gripped side. It is understood that the specific values ​​of the first and second power can be adjusted and set according to the structural parameters of the handlebar body, the resistance specifications of the resistance wire, and the results of actual vehicle tests. This application embodiment does not limit this.

[0050] Specifically, for each handlebar, when the current grip state of that handlebar changes from the first state to the second state, the control module continuously times the second state. If the second state lasts for a preset duration, it indicates that the state switch reflects a real-world usage scenario change. In this case, the current heating power of the resistance wire within that handlebar is adjusted according to the heating power corresponding to the second state. If the second state returns to the first state within the preset duration, it indicates that the switch occurred during a short-term situation, such as when the user temporarily releases the handlebar, for example, when operating a turn signal, using a mobile phone, or pushing a cart. In this case, the current heating power of the resistance wire within that handlebar remains unchanged to prevent frequent starting and stopping of the heating power due to temporary release. It should be noted that since the current grip state is refreshed in real-time according to the detection cycle, the above timing process can be implemented using a detection cycle count. That is, the number of detection cycles in which the second state is continuously maintained is counted. When the cumulative duration corresponding to this count reaches the preset duration, the state switch is confirmed to be valid.

[0051] In this way, by setting a preset time for confirmation after the state switch, short-term state changes such as temporarily letting go will not trigger the adjustment of the current heating power, and the adjustment of the current heating power matches the changes in the actual usage scenario. At the same time, the two adjustment methods are adapted to the product requirements of independent control on both sides and related control on both sides, respectively. The hierarchical setting of the first power and the second power provides a flexible configuration space for the on-demand allocation of heating power.

[0052] In one possible implementation, see [reference] Figure 3 As shown, before acquiring the electrical parameter signals of the resistance wires inside the left and right handle bodies, the process also includes: Step 301: When the vehicle is powered on, the control enters the initialization phase; wherein, the initialization phase corresponds to the fact that the resistance wire in the left handlebar body and the resistance wire in the right handlebar body are not energized and heated, and the left handlebar body and the right handlebar body are in a non-contact state.

[0053] In practical applications, vehicle power-on refers to the vehicle's power supply system starting to supply power to the control module and detection circuit. Specifically, the control module can determine whether the vehicle is powered on based on the supply voltage. For example, when the supply voltage rises to the control module's operating voltage range, it determines that the vehicle is powered on and the control enters the initialization phase. The initialization phase is the preparation phase after the vehicle is powered on and before cyclic control according to the detection cycle. During the initialization phase, neither of the resistance wires on either side is energized or heated. The resistance wires are switched to the detection circuit, and the detection power supply provides excitation voltage to the detection circuit. At the same time, the left and right handlebars are in a non-contact state. It can be understood that vehicle power-on usually corresponds to a scenario where the vehicle is stationary and the user has not yet started riding. At this time, the user generally does not hold the handlebars. Therefore, the electrical parameter signals collected during the initialization phase can characterize the inherent conductivity state of the detection circuit in the non-contact state. It should be noted that during the initialization phase, the control module can wait for the detection circuit to stabilize before acquiring electrical parameter signals. For example, the waiting time can be set to 100ms to avoid the influence of power-on transients on the acquisition results.

[0054] Step 302: Acquire multiple electrical parameter signals of the resistance wire inside the left handle body, and perform average processing on the multiple electrical parameter signals of the resistance wire inside the left handle body to obtain the reference value corresponding to the left handle body; acquire multiple electrical parameter signals of the resistance wire inside the right handle body, and perform average processing on the multiple electrical parameter signals of the resistance wire inside the right handle body to obtain the reference value corresponding to the right handle body.

[0055] In practical applications, the reference values ​​include the left-side voltage reference value, the left-side resistance reference value, the right-side voltage reference value, and the right-side resistance reference value. Specifically, for the resistance wire inside the left handlebar, the control module continuously acquires multiple voltage signals at the acquisition points of the resistance wire. For example, 10 signals can be acquired continuously. The average value of the acquired voltage signals is then processed to obtain the left-side voltage reference value. The equivalent resistance values ​​of the arms containing the resistance wires are calculated based on the acquired voltage signals, and the average value of these equivalent resistance values ​​is then processed to obtain the left-side resistance reference value. For the resistance wire inside the right handlebar, the control module processes it in the same way to obtain the right-side voltage reference value and the right-side resistance reference value. It should be noted that the left and right reference values ​​are acquired and processed independently to accommodate the inherent deviations in the detection circuit caused by differences in the length and wiring of the resistance wires on both sides. Each reference value is re-established each time the vehicle is powered on, thus automatically adapting to the slow changes in the inherent state of the detection circuit caused by factors such as changes in ambient temperature and component aging. It is also understandable that the preset judgment threshold is set according to the proportion of the corresponding reference value. After the reference value is re-established, the preset judgment threshold is automatically updated. In this way, by establishing reference values ​​on the left and right sides respectively during the initialization phase, an accurate comparison benchmark is provided for the subsequent calculation of signal deviation. Moreover, the reference value is re-established with each power-on, and the slow change in the inherent state of the detection circuit during long-term use will not cause misjudgment of the grip state.

[0056] In one possible implementation, see [reference] Figure 4 As shown, the method for controlling the heating power of the vehicle handlebars also includes: Step 401: Obtain the surface temperature of the left handle and the surface temperature of the right handle.

[0057] In practical applications, surface temperature refers to the temperature of the surface of the grip area of ​​the handle body. Surface temperature can be acquired by a temperature sensing element embedded within the handle body. This element can be a negative temperature coefficient thermistor, which can be attached to thermally conductive silicone near the resistance wire to quickly detect temperature changes caused by the heating of the resistance wire. Temperature sensing elements can be installed in the left and right handle bodies respectively, and the control module acquires the surface temperature on both sides. It should be noted that the acquisition of surface temperature is independent of the acquisition of electrical parameter signals; they can be acquired synchronously with the same detection cycle or with independent sampling cycles.

[0058] Step 402: When the surface temperature of either the left handle body or the right handle body exceeds a preset temperature threshold, reduce the current heating power of the resistance wire in the corresponding handle body.

[0059] In practical applications, the preset temperature threshold refers to a pre-set temperature critical value used to trigger overheat protection. For example, the preset temperature threshold can be set to 60℃. Specifically, when the surface temperature of either handle exceeds the preset temperature threshold, regardless of the current gripping state, the current heating power of the resistance wire within that handle is forcibly reduced, for example, to 50% of the maximum heating power. This means that temperature protection takes precedence over power adjustment based on the current gripping state. When the surface temperature of the other side does not exceed the preset temperature threshold, the current heating power of that side remains unaffected. After the surface temperature falls below the preset temperature threshold, temperature protection is deactivated, and the current heating power on that side is adjusted according to the current gripping state. It should be noted that to avoid frequent switching of the current heating power when the surface temperature fluctuates around the preset temperature threshold, a hysteresis temperature can also be set. For example, temperature protection is deactivated only after the surface temperature falls below the difference between the preset temperature threshold and the hysteresis temperature. For example, the hysteresis temperature can be set to 3℃ to 5℃.

[0060] In this way, by acquiring the surface temperature of the handle body on both sides and forcibly reducing the current heating power of the corresponding side when either side exceeds the preset temperature threshold, the surface temperature of the handle body is limited to near the preset temperature threshold, and the overheating caused by abnormal heating power adjustment or changes in environmental heat dissipation conditions is reduced accordingly; temperature protection is executed independently on each side, and triggering temperature protection on one side does not affect the normal heating of the other side.

[0061] In one possible implementation, the vehicle handlebar heating power control method further includes: If no electrical parameter signal is obtained within a consecutive preset second number of detection cycles, or if the signal value of the obtained electrical parameter signal is greater than a preset abnormal threshold, a detection fault is determined to have occurred, and the heating of the resistance wires in the left and right handle bodies is stopped.

[0062] In practical applications, the preset second quantity refers to the number of consecutive detection cycles required to determine the fault. For example, the preset second quantity can be set to 5 to 10. The preset abnormal threshold refers to the reasonable upper limit of the signal value of the electrical parameter signal, which can be preset according to the excitation voltage of the detection power supply and the circuit parameters of the detection circuit. For example, the preset abnormal threshold can be set as the sum of the maximum possible value of the signal under normal operating conditions and the preset margin.

[0063] Specifically, the detection faults fall into two categories. The first is that no electrical parameter signals are acquired within a second consecutive preset number of detection cycles. This indicates a possible anomaly in the detection circuit, such as a broken wire or a malfunctioning switch, preventing the control module from obtaining valid acquisition results. The second is that the signal values ​​of the electrical parameter signals acquired within a second consecutive preset number of detection cycles are all greater than a preset abnormal threshold. This indicates a possible anomaly in the detection circuit, such as a short circuit or sampling failure, resulting in continuous overflow or consistently abnormally high acquisition results. In both scenarios, the control module determines a detection fault has occurred, stops energizing and heating the resistance wires in both the left and right handlebars, enters a protection state, and can output maintenance prompts, such as through the vehicle's instrument panel, to alert the user or maintenance personnel to inspect the detection circuit. It should be noted that the fault determination is based on a second consecutive preset number of detection cycles, rather than a single detection cycle, to avoid misjudging occasional acquisition anomalies as detection faults. After a detection fault is determined, if the electrical parameter signals acquired within consecutive detection cycles return to normal, the protection state is exited, the initialization phase is re-executed, and normal control logic is restored.

[0064] In this way, when abnormalities such as open circuit, short circuit, switching failure, or sampling failure occur in the detection circuit, the control module can promptly identify the detection fault and stop energizing and heating the resistance wires on both sides, avoiding the situation where heating will run out of control due to the inability to obtain effective electrical parameter signals under fault conditions, thus improving the reliability of the system; after the fault is recovered, it will automatically reinitialize and restore control without manual intervention.

[0065] Based on the above embodiments, this application provides a vehicle handlebar heating power control device. The vehicle handlebar includes a left handlebar body and a right handlebar body, and a resistance wire R is respectively disposed in the left handlebar body and the right handlebar body. (See reference...) Figure 5 As shown, the vehicle handlebar heating power control device 1 provided in this application embodiment includes at least: a first detection circuit 2, a second detection circuit 3, a first heating module 4, a second heating module 5, and a control module 6; The first detection circuit 2 is electrically connected to the resistance wire R inside the left handle body; the first detection circuit 2 is used to collect the electrical parameter signal of the resistance wire R inside the left handle body. The second detection circuit 3 is electrically connected to the resistance wire R inside the right hand handle body; the second detection circuit 3 is used to collect the electrical parameter signal of the resistance wire R inside the right hand handle body. The first heating module 4 is electrically connected to the resistance wire R inside the left handle body. The first heating module 4 is used to energize and heat the resistance wire R inside the left handle body. The second heating module 5 is electrically connected to the resistance wire R inside the right hand handle body. The second heating module 5 is used to energize and heat the resistance wire R inside the right hand handle body. The control module 6 is electrically connected to the first detection circuit 2, the second detection circuit 3, the first heating module 4, and the second heating module 5, respectively. The control module 6 is used to acquire the electrical parameter signals of the resistance wire R in the left handle body and the resistance wire R in the right handle body. The electrical parameter signals are the potential signals or resistance value signals of the resistance wire R. For the resistance wire R in the handle body on each side, the current grip state of the corresponding handle body is determined based on the deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the reference value of the non-contact state. Based on the current grip state of the left handle body and the current grip state of the right handle body, the current heating power of the resistance wire R in the left handle body and the current heating power of the resistance wire R in the right handle body are adjusted independently.

[0066] In practical applications, the first detection circuit 2 and the second detection circuit 3 refer to circuit modules used to acquire the electrical parameter signals of the corresponding resistance wire R. Specifically, the first detection circuit 2 is electrically connected to the resistance wire R inside the left-hand grip body, acquiring the electrical parameter signals of the resistance wire R inside the left-hand grip body during the detection phase and transmitting them to the control module 6; the second detection circuit 3 is electrically connected to the resistance wire R inside the right-hand grip body, acquiring the electrical parameter signals of the resistance wire R inside the right-hand grip body during the detection phase and transmitting them to the control module 6. The circuit structures of the first detection circuit 2 and the second detection circuit 3 are identical, and they are independently set up for the left and right sides respectively, so that the electrical parameter signals of the two sides enter the control module 6 through independent acquisition paths. The acquisition results of the left side are not affected by the acquisition process of the right side, providing a hardware basis for independently determining the current grip state of the left and right sides.

[0067] The first heating module 4 and the second heating module 5 refer to circuit modules used to output heating power to the corresponding resistance wire R. Specifically, the first heating module 4 is electrically connected to the resistance wire R inside the left handle body, and during the heating phase, it energizes and heats the resistance wire R inside the left handle body according to the current heating power of the resistance wire R inside the left handle body; the second heating module 5 is electrically connected to the resistance wire R inside the right handle body, and during the heating phase, it energizes and heats the resistance wire R inside the right handle body according to the current heating power of the resistance wire R inside the right handle body. For example, both the first heating module 4 and the second heating module 5 may include a power switch and a filter circuit. The power switch may be a metal-oxide-semiconductor field-effect transistor. The control module 6 drives the power switch to turn on and off through a pulse width modulation signal to adjust the average heating power of the corresponding resistance wire R; the filter circuit is used to suppress electromagnetic interference generated by the high-frequency switching of the power switch, and to prevent electromagnetic interference from entering the detection circuit through the resistance wire R and affecting the acquisition of electrical parameter signals. The first heating module 4 and the second heating module 5 are independently set on the left and right sides respectively, so that the heating on both sides can be executed independently. The start, stop or power adjustment of heating on one side will not affect the other side, providing a hardware basis for the independent adjustment of the current heating power on the left and right sides.

[0068] Control module 6 refers to a device with data acquisition, processing, and command output functions, and is the control center of the entire device. Control module 6 may include a microcontroller, a storage module, an analog-to-digital converter, and a drive circuit: The microcontroller is used to execute the aforementioned vehicle handlebar heating power control method, including establishing left-side voltage reference values, left-side resistance reference values, right-side voltage reference values, and right-side resistance reference values ​​during the initialization phase; controlling the switching between the heating phase and the detection phase in each detection cycle; determining the current grip state based on the signal deviation between the electrical parameter signal and the reference reference values; determining the current heating power based on the current grip state; and performing temperature protection and fault detection handling. The storage module is used to store each reference value, preset judgment thresholds, preset temperature thresholds, preset abnormal thresholds, and preset first... The system includes parameters such as quantity, preset second quantity, preset duration, and the correspondence between the current holding state and the current heating power; the input terminal of the analog-to-digital converter is connected to the first detection circuit 2 and the second detection circuit 3, and is used to convert the electrical parameter signals collected by the first detection circuit 2 and the second detection circuit 3 from analog signals to digital signals and output them to the microcontroller, so that the microcontroller can read the signal value of the potential signal, or calculate the signal value of the resistance signal based on the signal value of the potential signal. For example, the analog-to-digital converter can be a 12-bit analog-to-digital converter, and the analog-to-digital converter can be integrated inside the microcontroller; the drive circuit is used to output drive signals to the first heating module 4 and the second heating module 5 respectively. The control module 6 can be an independently set controller, or it can reuse the vehicle's whole vehicle controller. This application embodiment does not limit this.

[0069] Specifically, the working process of the vehicle handlebar heating power control device 1 provided in this application embodiment is as follows: When the vehicle is powered on, the control module 6 enters the initialization stage, and collects the electrical parameter signals of the resistance wires R on the left and right sides through the first detection circuit 2 and the second detection circuit 3 respectively, and establishes the voltage reference value and resistance reference value on the left and right sides; after initialization, the control module 6 performs control cyclically according to the detection cycle. In the heating stage of each detection cycle, the control module 6 controls the first heating module 4 and the second heating module 5 to energize and heat the resistance wires R on the left and right sides according to the current heating power. In the detection stage of each detection cycle, the control module 6 controls the energization and heating to stop, and through the first detection circuit 2 and the second detection circuit 3 ... establishes the voltage reference value and resistance reference value on the left and right sides. The two detection circuits 3 collect electrical parameter signals from the left and right sides respectively; the control module 6 determines the current grip state of the left and right sides based on the signal deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the corresponding reference values, and determines the current heating power of the two sides based on the current grip state of the two sides, for execution in the heating stage of the next detection cycle; when the surface temperature of the handle body on either side exceeds the preset temperature threshold, the control module 6 forcibly reduces the current heating power of the corresponding side; when no electrical parameter signal is obtained or the signal value is greater than the preset abnormal threshold in a consecutive preset second number of detection cycles, the control module 6 determines that a detection fault has occurred and controls the first heating module 4 and the second heating module 5 to stop heating.

[0070] In this way, the first detection circuit 2 and the first heating module 4 are set independently for the left hand grip body, and the second detection circuit 3 and the second heating module 5 are set independently for the right hand grip body. The control module 6 executes the control logic in a unified manner, so that the electrical parameter signals on the left and right sides are collected independently, and the resistance wires R on the left and right sides are heated independently. The independent determination of the current grip state on the left and right sides and the independent adjustment of the current heating power are all supported by complete hardware. The control module 6 coordinates the time-division multiplexing of the heating module and the detection circuit for the time-division operation of the same resistance wire R, so that there is no need to add an independent sensing element for grip detection, and the structure of the device is simplified accordingly.

[0071] In one possible implementation, see [reference] Figure 6 As shown, the first detection circuit includes: a first resistor R1, a second resistor R2, and a switching switch S; The fixed end of the switch S is connected to the first end of the resistance wire R inside the left handle body; the first selection end of the switch S is connected to the first heating module 4; the second selection end of the switch S is connected to the detection power supply; and the control end of the switch S is connected to the control module 6.

[0072] The first end of the first resistor R1 is connected to the second end of the resistance wire R inside the left hand handle body, and the second end of the first resistor R1 is connected to ground; the first end of the second resistor R2 is connected to the first end of the resistance wire R inside the left hand handle body, and the second end of the second resistor R2 is connected to the first end of the first resistor R1 and the control module 6.

[0073] In practical applications, a changeover switch S refers to a switching device capable of switching between two conduction states under the action of a control signal. The changeover switch S has a fixed terminal, a first selection terminal, a second selection terminal, and a control terminal. The fixed terminal is the common connection terminal of the changeover switch S, and the changeover switch S can selectively connect the fixed terminal to either the first selection terminal or the second selection terminal. For example, the changeover switch S can be a relay or an analog switch chip. The control terminal of the changeover switch S is connected to the control module 6, and the control module 6 outputs a control signal to the changeover switch S via the control terminal to control the conduction state of the changeover switch S. The detection power supply refers to the power supply that provides excitation for the detection stage. For example, the detection power supply can be a reference voltage source that outputs a reference voltage. The first resistor R1 and the second resistor R2 are voltage divider resistors. For example, the first resistor R1 and the second resistor R2 can be precision metal film resistors with an accuracy of 1%, and the resistance value can range from 100Ω to 1kΩ. In the first detection circuit, the second resistor R2 is connected in parallel with the resistance wire R and then in series with the first resistor R1 to form a resistor string. The resistance wire R is connected in parallel to one arm of the resistor string. The connection point between the second resistor R2 and the first resistor R1 is the voltage divider node of the resistor string. This voltage divider node is connected to the control module 6 and serves as the acquisition point for the control module 6 to obtain electrical parameter signals.

[0074] Specifically, during the heating phase, control module 6 controls the fixed terminal of switch S to be connected to the first selection terminal. The first heating module 4 energizes and heats the resistance wire R inside the left handle body via switch S. The heating current flows to ground through the resistance wire R and the first resistor R1. During the detection phase, control module 6 controls the fixed terminal of switch S to be connected to the second selection terminal. The detection power supply is connected to the first detection circuit via switch S. The current flows to ground through the parallel branch formed by the second resistor R2 and the resistance wire R, and the first resistor R1, forming a voltage divider circuit.

[0075] When the left-hand handle is in a non-contact state, the equivalent resistance of the parallel branch is the parallel resistance of the second resistor R2 and the resistance wire R. This equivalent resistance determines the voltage at the sampling point, which corresponds to the reference value for the non-contact state. When the left-hand handle is gripped, the human body impedance is coupled into the parallel branch via the hand, changing the equivalent resistance of the parallel branch and altering the voltage distribution in the voltage divider circuit. The voltage at the sampling point deviates from the reference value for the non-contact state. Thus, the control module 6 can acquire electrical parameter signals reflecting the gripping status of the left-hand handle via the sampling points connected to the voltage divider nodes. The signal value of the electrical parameter signal acquired by control module 6 is determined as follows: When the electrical parameter signal is a potential signal, the signal value is the voltage value of the acquisition point, and control module 6 directly reads the voltage value of the acquisition point as the signal value; when the electrical parameter signal is a resistance signal, the signal value is the equivalent resistance value of the arm containing the resistance wire R, that is, the equivalent resistance value after the second resistor R2 and the resistance wire R are connected in parallel, which control module 6 calculates based on the voltage value of the acquisition point. The conversion relationship is shown in the following formula: Req = (VCC / Vadc) 1) ×R1 Where Req is the equivalent resistance of the arm containing the resistance wire R, that is, the equivalent resistance of the second resistor R2 connected in parallel with the resistance wire R inside the left handle body; VCC is the voltage value of the detection power supply; Vadc is the voltage value of the acquisition point; and R1 is the resistance value of the first resistor.

[0076] The structure and working principle of the second detection circuit are the same as those of the first detection circuit, and will not be described again here. The connection relationships between the switch, the third resistor, the fourth resistor and the resistance wire inside the right handle body in the second detection circuit, as well as the connection relationships between the second detection circuit and the second heating module and the control module, can all be set with reference to the above connection relationships of the first detection circuit.

[0077] It should be noted that the principle of the vehicle handlebar heating power control device provided in this application embodiment to solve the technical problem is similar to that of the vehicle handlebar heating power control method provided in this application embodiment. Therefore, the implementation of the vehicle handlebar heating power control device provided in this application embodiment can refer to the implementation of the vehicle handlebar heating power control method provided in this application embodiment, and the repeated parts will not be described again.

[0078] Based on the above embodiments, this application provides an electric two-wheeled vehicle, which includes at least: a vehicle body and the above-mentioned vehicle handlebar heating power control device; The handlebars of the vehicle are equipped with a left handlebar body and a right handlebar body at both ends, and a resistance wire is installed inside the left handlebar body and the right handlebar body respectively. The resistance wires inside the left handlebar body and the right handlebar body are electrically connected to the vehicle handlebar heating power control device.

[0079] In practical applications, an electric two-wheeled vehicle refers to a vehicle with two wheels powered by an onboard power source. For example, an electric two-wheeled vehicle can be an electric bicycle, an electric moped, or an electric motorcycle. The handlebars are components in an electric two-wheeled vehicle used by the rider to control the vehicle's direction. A left handlebar body and a right handlebar body are respectively installed at both ends of the handlebars, with the left handlebar body corresponding to the rider's left hand and the right handlebar body corresponding to the rider's right hand. The left and right handlebar bodies can be manufactured using injection molding, and the material can be ABS engineering plastic or rubber composite material. The outer surface of the gripping part of the handlebar body can have anti-slip textures, and the handlebar body has a pre-reserved spiral wiring groove. For example, the cross-section of the wiring groove can be semi-circular, with a diameter of 3mm to 5mm and a pitch of 8mm to 12mm. The resistance wire is wound 3 to 5 turns along the wiring groove to ensure that heat is evenly distributed along the length of the handlebar body. The resistance wire can be made of nickel-chromium alloy; for example, it can be a Cr20Ni80 nickel-chromium alloy resistance wire. The specifications of the resistance wire can be selected according to the system voltage of the electric two-wheeler. During wiring, the resistance wire is inserted into one end of the handlebar body, wound evenly along the spiral wiring groove, and led out from the other end of the handlebar body. 5cm to 10cm of lead wire is left at both ends of the resistance wire for electrical connection. After winding, thermally conductive silicone can be filled inside the handlebar body. The thermally conductive silicone can both fix the resistance wire and enhance the heat conduction efficiency between the resistance wire and the handlebar body. The resistance wire in the left handlebar body is electrically connected to the first detection circuit and the first heating module in the vehicle's handlebar heating power control device. The resistance wire in the right handlebar body is electrically connected to the second detection circuit and the second heating module in the vehicle's handlebar heating power control device, thereby realizing the switching of the resistance wire between the heating stage and the detection stage, the acquisition of electrical parameter signals, and the adjustment of the current heating power.

[0080] In practical implementation, the various parts of the vehicle handlebar heating power control device can be arranged in an integrated or separate manner. The first detection circuit and the first heating module can be integrated into the left handlebar body, and the second detection circuit and the second heating module can be integrated into the right handlebar body, each connected to the control module via leads. Alternatively, the first detection circuit, the second detection circuit, the first heating module, and the second heating module can be located on the vehicle body, with the resistance wires in the left and right handlebar bodies connected to the corresponding detection circuits and heating modules via leads. For example, the parts located on the vehicle body can be arranged in the center of the handlebars, inside the seat, or inside the front cover. The control module can be implemented by a separate controller or by the vehicle controller of the electric two-wheeler, i.e., the vehicle controller executes the aforementioned vehicle handlebar heating power control method.

[0081] It should be noted that although several units or sub-units of the device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of this application, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided and embodied by multiple units.

[0082] Furthermore, although the operations of the method of this application are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0083] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0084] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of the embodiments of this application. Therefore, if these modifications and variations to the embodiments of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A method for controlling the heating power of a vehicle handlebar, characterized in that, The vehicle handlebar includes a left handlebar body and a right handlebar body, and a resistance wire is respectively disposed within the left handlebar body and the right handlebar body; the method includes: Obtain the electrical parameter signals of the resistance wire inside the left handle body and the resistance wire inside the right handle body; wherein, the electrical parameter signal is the potential signal or resistance value signal of the resistance wire; For the resistance wire inside the handle body on each side, the current gripping state of the handle body on the corresponding side is determined based on the deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the reference value of the non-contact state. Based on the current gripping state of the left handle body and the current gripping state of the right handle body, the current heating power of the resistance wire in the left handle body and the current heating power of the resistance wire in the right handle body are adjusted independently.

2. The method for controlling the heating power of vehicle handlebars as described in claim 1, characterized in that, The detection cycle includes a heating phase and a detection phase; acquiring the electrical parameter signals of the resistance wire in the left handle body and the resistance wire in the right handle body includes: During the heating phase, the resistance wire inside the left handle body is energized and heated according to the current heating power of the resistance wire inside the left handle body, and the resistance wire inside the right handle body is energized and heated according to the current heating power of the resistance wire inside the right handle body. During the detection phase, the heating of the resistance wires in the left and right handlebars is stopped, and the electrical parameter signals of the resistance wires in the left and right handlebars are acquired simultaneously.

3. The method for controlling the heating power of vehicle handlebars as described in claim 1, characterized in that, The step of determining the current gripping state of the handle body on the corresponding side based on the deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the reference value of the non-contact state includes: Based on the signal deviation between the signal value of the electrical parameter signal collected in each detection cycle and the reference value, it is determined whether the handle body on the corresponding side is held in that detection cycle. If it is determined that the handle body on the corresponding side is not being held within a consecutive preset first number of detection cycles, the current holding state of the handle body on the corresponding side is determined to be unheld; If it is determined that the handle body on the corresponding side is being held within a consecutive preset first number of detection cycles, the current holding state of the handle body on the corresponding side is determined to be "held".

4. The method for controlling the heating power of vehicle handlebars as described in claim 1, characterized in that, The step of independently adjusting the current heating power of the resistance wire in the left handle body and the current heating power of the resistance wire in the right handle body according to the current gripping state of the left handle body and the current gripping state of the right handle body, respectively, includes: When the current gripping state of the left handle body changes from the first state to the second state, if the second state continues for a preset duration, the current heating power of the resistance wire in the left handle body is adjusted according to the heating power corresponding to the second state; if the second state returns to the first state within the preset duration, the current heating power of the resistance wire in the left handle body is maintained. When the right hand switches the current gripping state of the body from the first state to the second state, if the second state continues for a preset duration, the current heating power of the resistance wire in the right hand grip body is adjusted according to the heating power corresponding to the second state; if the second state returns to the first state within the preset duration, the current heating power of the resistance wire in the right hand grip body is maintained.

5. The method for controlling the heating power of a vehicle handlebar as described in any one of claims 1-4, characterized in that, Before acquiring the electrical parameter signals of the resistance wires in the left and right handle bodies, the process further includes: When the vehicle is powered on, the control enters the initialization phase; wherein, the initialization phase corresponds to the fact that the resistance wire in the left handlebar body and the resistance wire in the right handlebar body are not energized and heated, and the left handlebar body and the right handlebar body are in a non-contact state. Multiple electrical parameter signals of the resistance wire inside the left handle body are acquired, and the average value of the multiple electrical parameter signals of the resistance wire inside the left handle body is processed to obtain the reference value corresponding to the left handle body. Multiple electrical parameter signals of the resistance wire inside the right handle body are acquired, and the average value of the multiple electrical parameter signals of the resistance wire inside the right handle body is processed to obtain the reference value corresponding to the right handle body.

6. The method for controlling the heating power of a vehicle handlebar as described in claim 5, characterized in that, Also includes: The surface temperature of the left handle body and the surface temperature of the right handle body are obtained; When the surface temperature of either the left handle body or the right handle body exceeds a preset temperature threshold, the current heating power of the resistance wire in the corresponding handle body is reduced.

7. The vehicle handlebar heating power control method as described in claim 5, characterized in that, Also includes: If the electrical parameter signal is not obtained within a consecutive preset second number of detection cycles, or if the signal value of the obtained electrical parameter signal is greater than a preset abnormal threshold, a detection fault is determined to have occurred, and the heating of the resistance wire in the left handle body and the resistance wire in the right handle body is stopped.

8. A vehicle handlebar heating power control device, characterized in that, The vehicle handlebar includes a left handlebar body and a right handlebar body, and resistance wires are respectively disposed in the left handlebar body and the right handlebar body. The device includes: a first detection circuit, a second detection circuit, a first heating module, a second heating module and a control module. The first detection circuit is electrically connected to the resistance wire inside the left handle body; the first detection circuit is used to collect the electrical parameter signal of the resistance wire inside the left handle body. The second detection circuit is electrically connected to the resistance wire inside the right-hand handle body; the second detection circuit is used to collect the electrical parameter signal of the resistance wire inside the right-hand handle body. The first heating module is electrically connected to the resistance wire inside the left handle body, and the first heating module is used to heat the resistance wire inside the left handle body by passing electricity. The second heating module is electrically connected to the resistance wire inside the right handle body, and the second heating module is used to heat the resistance wire inside the right handle body by energizing it. The control module is electrically connected to the first detection circuit, the second detection circuit, the first heating module, and the second heating module, respectively. The control module is used to acquire the electrical parameter signals of the resistance wire in the left handle body and the resistance wire in the right handle body. The electrical parameter signals are the potential signals or resistance value signals of the resistance wires. For the resistance wire in the handle body on each side, the current grip state of the corresponding side of the handle body is determined based on the deviation between the electrical parameter signals collected in multiple consecutive detection cycles and the reference value of the non-contact state. Based on the current grip state of the left handle body and the current grip state of the right handle body, the current heating power of the resistance wire in the left handle body and the current heating power of the resistance wire in the right handle body are adjusted independently.

9. The vehicle handlebar heating power control device as described in claim 8, characterized in that, The first detection circuit includes: a first resistor, a second resistor, and a switching switch; The fixed end of the switch is connected to the first end of the resistance wire inside the left handle body; the first selection end of the switch is connected to the first heating module; the second selection end of the switch is connected to the detection power supply; and the control end of the switch is connected to the control module. The first end of the first resistor is connected to the second end of the resistance wire inside the left hand grip body, and the second end of the first resistor is connected to ground; the first end of the second resistor is connected to the first end of the resistance wire inside the left hand grip body, and the second end of the second resistor is connected to the first end of the first resistor and the control module.

10. An electric two-wheeled vehicle, characterized in that, include: The vehicle body and the vehicle handlebar heating power control device as described in claim 8 or 9; The left handlebar body and the right handlebar body are respectively provided at both ends of the handlebar of the vehicle body. The resistance wire is respectively provided in the left handlebar body and the right handlebar body. The resistance wire in the left handlebar body and the resistance wire in the right handlebar body are respectively electrically connected to the vehicle handlebar heating power control device.

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