16496 results about "Treadle" patented technology

To ensure the rigidity of a floor panel against a load in a vertical direction in an electric vehicle having a step in the floor panel.SOLUTION: A rear floor panel 10 of an electric vehicle has an inclined part 16 that extends while inclining upward as it heads for backward from a rear end of a plane part 12. A floor cross member 20 is disposed in a front part of the inclined part 16 on the side of an upper surface of the rear floor panel 10. An under-floor reinforcement 30 is disposed in the front part of the inclined part 16 on the side of a lower surface of the rear floor panel 10. A front end of the under-floor reinforcement 30 is disposed ahead of the front end of the inclined part 16, and a rear end of the under-floor reinforcement 30 is disposed on the inclined part 16. The under-floor reinforcement 30 and the floor cross member 20 are joined with the rear floor panel 10 therebetween.SELECTED DRAWING: Figure 6

The invention provides a lithium battery hybrid power motorcycle performance improvement control strategy generation method, which comprises the steps that vehicle driving states comprise a sliding state and a braking state, if the current vehicle is in the sliding state, a preset sliding energy recovery mode is activated, and if the current vehicle is in the braking state, a preset braking energy recovery mode is activated; different energy recovery strategies are combined and optimized according to the subdivision result of the energy recovery strategies in the sliding state and the braking state, and the vehicle speed, the battery charging state and the energy recovery potential value parameters are input to obtain a target energy recovery strategy combination scheme; the intention of acceleration, deceleration or constant speed of a driver is judged according to the operation characteristics of an accelerator and a brake, the operation characteristics refer to the force of stepping on an accelerator pedal and a brake pedal, and the driver intention obtained through judgment serves as the basis for dynamic adjustment of the energy recovery strategy.

The invention discloses a dual-electric brake boosting system for a heavy-duty vehicle and a coordinated control method of the dual-electric brake boosting system, and relates to the technical field of vehicle brake control. The invention discloses a dual-electric brake power-assisted system for a heavy-duty vehicle and a coordinated control method thereof. The coordinated control method comprises the following steps that S1, a multi-source sensor synchronously collects and preprocesses wheel speed, current, suspension and pedal signals; s2, estimating the load in real time through Kalman filtering, and outputting a dynamic load coefficient to guide distribution; s3, triggering interruption when the pedal force change rate exceeds the threshold value, and directly outputting the maximum braking force; s4, dynamically distributing the braking force, predicting the temperature rise, and adjusting the output weights of the double boosters; s5, outputting a digital twinborn verification theory, and starting a compensation algorithm after deviation overrun; s6, encrypting an instruction by a TSN protocol, and ensuring low-delay transmission and communication security; s7, a closed-loop optimization link is formed based on the actual braking data calibration model; the method has the beneficial effect that the real-time performance, safety and reliability of the braking system are comprehensively improved.

A foldable leg lift machine includes a base unit, a main handle unit, two drive levers, two pedals, and a linkage mechanism. The base unit includes a first stand, a second stand pivotally connected with the first stand, and two third stands pivotally connected with the first stand. The main handle unit is connected with the first stand and provided with a handgrip. Each of the drive levers is pivotally connected with one of the third stands. Each of the pedals is pivotally connected with one of the drive levers. The linkage mechanism includes a swing base pivotally mounted on the third stands, and two linkage rods each pivotally connected with the swing base and pivotally connected with one of the two drive levers.

The present application relates to a mini foldable treadmill, a lower end of the strut is rotatably connected to one end of a running plate; a part of the swivel arm near the middle of the swivel arm is hinged to the strut by an second rotation axis, a connector is disposed at the lower end of the swivel arm, which is connected to the upper end of the transmission portion, the lower end of the transmission portion is connected to the upper end of the spring pin, the spring pin is slidably mounted at the lower end of the strut, a fastener is disposed on the running plate, a pin hole is disposed thereon, and the spring pin is driven to extend so that the strut is in an upright state or driven to retract so that the strut is not in an upright state.

A freewheel adjustable wheel of the present invention comprises: a rotary gear unit that is rotated by receiving power from a pedal part and is provided with a gear along the outer circumference thereof; a case part that supports the rotary gear unit to be rotatable; a clutch bearing that transmits the power to the case part when the rotary gear unit rotates in the forward direction; a clutch hub that rotates together with the rotary gear unit; clutch gears installed on the clutch hub and fixed to the case part; and a drive unit that supplies rotational power; and a moveable gear unit moved by means of the power of the driving unit.

A vehicle anti-theft device that is configured to be surroundably mount a brake pedal inhibiting access thereto and as such disabling features of the vehicle such as but not limited to starting of the vehicle. The invention includes a housing having a plurality of walls forming an interior volume being of suitable size to accommodate a vehicle brake pedal therein. The housing includes a front wall that is hingedly mounted operable to move between an open and closed position. A top wall is slidably secured to the housing so as to facilitate placement of the housing around the vehicle brake pedal. A wedge member is placed within the interior volume of the housing and is configured to engage the brake pedal applying an upwards bias thereagainst so as to inhibit movement of the vehicle brake pedal. A lateral stability member is secured to the housing to inhibit lateral movement thereof.

A method and system for controlling an electric bicycle are provided. The method may comprise: driving the electric bicycle; generating a deceleration torque command of a driving motor based on a moving distance of a pedal if a driver rotates the pedal installed in the electric bicycle in a reverse direction while the electric bicycle is driving; controlling a current supplied to the driving motor according to the deceleration torque command; and generating a deceleration torque of the driving motor by the current control.

The electric luggage case comprises a case body, a steering device and a pedal device, the steering device comprises a T-shaped steering support, handles are arranged on the left side and the right side of the steering support respectively, first inclined parts with downward inclined faces are formed at the left end and the right end of the steering support respectively, and second inclined parts are formed at the upper ends of the handles. The second inclined part is attached to the first inclined part; the pedal device comprises a pedal fixing seat, a pedal body is arranged in the pedal fixing seat in a penetrating mode, the pedal body is in sliding fit with the pedal fixing seat, a pedal limiting mechanism is arranged at the bottom of the pedal fixing seat, and pedal keys are arranged at the top of the pedal body. The handle is convenient to store and stretch, and steering control and walking control are easy to achieve.

A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to a controller of the bicycle. The controller is configured to instruct an assist motor to activate based on the measured wheel speed and / or the measured crank cadence.

A method and system for calculating a torque required by a driver, and a vehicle and a storage medium. The method for calculating a torque required by a driver comprises: acquiring the opening degree of an accelerator pedal of a target vehicle, the actual speed of the target vehicle, the actual acceleration of the target vehicle, and the gradient of the current road on which the target vehicle is travelling (S101); determining a target acceleration on the basis of the opening degree of the accelerator pedal and the actual speed (S102); subtracting the target acceleration from the actual acceleration to obtain an acceleration difference (S103); on the basis of the acceleration difference, performing closed-loop correction on a required torque, so as to obtain a corrected torque (S104); on the basis of the actual speed and the gradient of the current road on which the target vehicle is travelling, determining the coasting resistance torque and gradient resistance torque of the target vehicle (S105); and adding up the corrected torque, the coasting resistance torque and the gradient resistance torque to obtain a torque required by a driver (S106). The method can automatically adapt to a change in the gradient of a road, such that a torque required by a driver can be accurately and effectively calculated, thereby improving the driving experience of the driver.

The present invention relates to a stair stepper, including: a rack provided with two slide rails, each of the slide rails is slidably provided with one pedal component, where the two pedal components form linkage in the form of reverse synchronous movement; and a damping mechanism, including a linear elastic element, where the linear elastic element is straddled between the two slide rails, two ends of the linear elastic element are respectively connected to the pedal components. The linear elastic element expands or contracts with the reverse synchronous movement of the pedal components, to form a changing elastic force, and the changing elastic force acts on the pedal components, to form resistance to the movement of the pedal components.

The present application relates to the technical field of vehicles, and provides an energy recovery control method and device, and a vehicle, aiming to provide an energy recovery strategy during driving downhill and improve the driving comfort in a downhill state. The method comprises: in response to the working condition of a vehicle meeting an energy recovery condition, detecting the state of the vehicle; when the vehicle is in a downhill state, acquiring the current opening degree and the current change rate of an accelerator pedal of the vehicle; determining a driving intention of the vehicle on the basis of the current opening degree; and triggering an energy recovery strategy corresponding to the driving intention so as to carry out energy recovery, wherein an energy recovery strategy corresponding to a slip driving intention comprises determining a target recovery torque on the basis of the current vehicle speed of the vehicle, and an energy recovery strategy corresponding to an accelerated driving intention comprises determining a target recovery torque on the basis of the current opening degree and / or the current change rate.

A method for operating an electric vehicle for traversing off-road terrain includes operating the vehicle both in a normal operating mode and an electric low range operating mode. A control unit receives inputs from sensors that determine vehicle operating conditions, such as vehicle speed, grade of terrain, accelerator position, and brake pedal position. The method adjusts motor torque or the maximum allowable motor as a function of the determined vehicle operating conditions, to provide improved electric vehicle operation in a low range mode, including the increasing motor torque at different rates relative to the normal mode, allowing a greater maximum allowable torque, increasing torque to overcome obstacles, and increasing torque to ascend or descend.

A chainless hybrid electric bicycle includes a bicycle body. A generator, a battery pack, a driving motor and a manual switch are mounted on the bicycle body. The generator is coaxially mounted with the pedal transmission unit, so that the generator generates an electric power when the rider works the pedals. The battery pack is electrically connected to the generator for storing the electric power generated by the generator. The driving motor drives the wheels of the bicycle body to run. The rider selects the electric power from the generator or the battery pack through the manual switch to drive the driving motor to run, which in turn drives the bicycle body to move forward. The chainless hybrid electric bicycle has the advantage of a hybrid power drive system, without using traditional mechanical transmission components such as chains and chainrings.

A “one-pedal rocking mode” for extricating an electric vehicle from a stuck condition is implemented by: receiving, via a human-machine interface (HMI) of the electric vehicle, an indication of a user selection to activate the one-pedal rocking mode; operating the electric vehicle in the one-pedal rocking mode responsive to detecting movement of an accelerator pedal of the electric vehicle; controlling at least one electric motor of the electric vehicle to: (i) apply a forward torque to corresponding drive wheels when the accelerator pedal is in a first pedal position that exceeds a forward threshold, (ii) apply a reverse torque to the corresponding drive wheels when the accelerator pedal is in a second pedal position that is less than or equal to the forward threshold; and exiting the one-pedal rocking mode by switching operations of the electric vehicle to a second operating mode responsive to detecting an exit condition.

The invention provides a vehicle brake pedal characteristic calibration method and device, and the method comprises the steps: carrying out the slow braking test of a test vehicle under a preset test condition, obtaining a plurality of groups of first brake test data, and carrying out the following processing for each group of first brake test data: employing the collected deceleration as an abscissa array, performing first-order linear interpolation on the longitudinal coordinate array by taking the pressure of the servo cylinder as the longitudinal coordinate array to obtain a first interpolation function; performing first-order linear interpolation by taking the acquired pedal travel as an abscissa array and the brake master cylinder push rod travel as an ordinate array to obtain a second interpolation function; and according to the target deceleration number array, each group of first interpolation functions, the target pedal travel data and each group of second interpolation functions, determining brake calibration parameters, and completing calibration. According to the method, the pedal characteristics of the test vehicle are accurately adjusted and optimized according to the target deceleration data through the first-order linear interpolation method, and the calibration precision of the vehicle braking parameters is improved.

Methods, systems, and apparatus for a regenerative braking and powertrain pedal system. The powertrain system includes an electric motor that is configured to generate regenerative energy and provide a regenerative braking torque. The powertrain system includes an electronic control unit coupled to the electric motor. The electronic control unit is configured to cause an accelerator pedal to rotate about its pivot point to increase a total available stroke in response to an energy recovery mode being activated. The electronic control unit is configured to control an amount of the regenerative braking torque to be applied using an accelerator pedal position. The electronic control unit is configured to cause the accelerator pedal to rotate about its pivot point to decrease the total available stroke in response to the energy recovery mode being deactivated.

The invention provides a vehicle control method, a vehicle controller and a vehicle for vehicle pendulum type garage entering and exiting, and the method is used for controlling a braking system and a front-drive motor of the vehicle after a user starts a vehicle pendulum type garage entering and exiting function. The method comprises the steps of controlling a braking system to brake a left rear wheel of the vehicle and controlling a front-drive motor to drive two front wheels of the vehicle to reversely rotate to enable the vehicle to enter a garage in response to the situation that the angle of a user rotating a steering wheel of the vehicle rightwards is larger than a preset angle and the opening degree of the user operating an accelerator pedal of the vehicle is larger than a first preset opening degree. The method further comprises the steps of controlling a braking system to brake a right rear wheel of the vehicle and controlling a front-drive motor to drive two front wheels of the vehicle to rotate forwards so as to enable the vehicle to leave the garage in response to the situation that the angle of turning the steering wheel of the vehicle leftwards by the user is larger than a preset angle and the opening degree of operating an accelerator pedal of the vehicle by the user is larger than a first preset opening degree. By using the method, the parking distance of the vehicle can be effectively reduced while the dynamic state of the vehicle body is accurately controlled.

A brake apparatus includes a first motor associated with a first brake for braking a first wheel, a first drive controlling a driving current of the first motor to brake the first wheel, a second motor associated with a second brake for braking a second wheel, a second drive controlling a driving current of the second motor to brake the second wheel, a first processor integrated with the first drive and receiving an output of a first pedal sensor detecting movement of a brake pedal, and a second processor integrated with the second drive and receiving an output of a second pedal sensor detecting the movement of the brake pedal. The first processor transmits a brake signal to the first drive based on the output of the first pedal sensor. The second processor transmits a brake signal to the second drive based on the output of the second pedal sensor.

The present invention relates to the technical field of automobile sound simulation, and discloses a sound effect control and automobile sound simulation method based on sound simulation, including signal analysis and synthesis, sound location and distribution, audio signal output and optimization, and the automobile sound simulation method includes sound simulation based on the working mode of the vehicle hybrid system, based on the speed of the driving motor and the opening of the accelerator pedal, based on the gearshift operation of the gearbox, and based on the vehicle speed signal. The sound effect control and automobile sound simulation method based on sound simulation, the sound effect control and automobile sound simulation technology usually support personalized customization, and users can choose different sound effects or sound modes according to their preferences and needs to improve the user experience. For automobile sound simulation, the technology can achieve the change of sound effect without physical modification of the car, reducing the modification cost, and also avoiding the vehicle performance degradation or safety hazards caused by modification.

A method and apparatus for controlling an electro-mechanical brake are disclosed. An embodiment of the present disclosure provides a method for controlling an electro-mechanical brake (EMB) of a vehicle, comprising: measuring a pedal stroke value; determining whether the pedal stroke value exceeds a first threshold; in response to determining that the pedal stroke value does not exceed the first threshold, generating a first braking force for reducing an air gap of the EMB; in response to determining that the pedal stroke value exceeds the first threshold, setting a target braking force for decelerating the vehicle; and after setting the target braking force, generating a second braking force based on the target braking force, wherein a magnitude of the first braking force is determined based on an increase rate of the pedal stroke value over time, and wherein the target braking force is proportional to the pedal stroke value.

The invention relates to an automatic telescopic electric pedal system and a use method thereof. The automatic telescopic electric pedal system comprises a control unit, an instruction input unit, a vehicle state detection unit, an intelligent preheating unit, an omnibearing obstacle detection unit, a self-adaptive adjustment unit, an intelligent interaction unit and an emergency management unit. On the one hand, the omnibearing obstacle detection unit builds a first safety defense line, through precise sensor layout and efficient data processing flow, rapid early warning and timely avoidance of potential collision risks are achieved, and running safety of the pedal is guaranteed. And on the other hand, after the emergency management unit receives the fault information, corresponding processing strategies are rapidly and accurately matched according to multiple built-in preset emergency schemes and aiming at different fault types, and emergency signals are sent to the vehicle central control system at the same time, so that driving and getting-on and getting-off safety is guaranteed in an all-around mode; the system can deal with sudden failures or potential collision risks in order, and the life and property safety of people in the vehicle is practically guaranteed.

The invention discloses a vehicle control method and device and a vehicle. The method comprises the steps that in a current stroke determination period, when it is determined that an accelerator is released and a brake pedal is stepped down, the current stroke of the brake pedal is determined; if the difference value between the current stroke and the previous stroke of the previous stroke determination period is smaller than or equal to a preset difference value threshold value, the current deceleration is determined according to the current stroke, and the motor is controlled to decelerate according to the current deceleration and a proportional-integral control strategy; if the difference value between the current stroke and the previous stroke is larger than a preset difference value threshold value, or the duration of the maximum stroke of the current stroke reaches a first preset duration, an electromagnetic brake is controlled to conduct braking; and in the process of controlling the motor to decelerate, if the duration of the opposite actual rotation direction of the motor to the initial rotation direction reaches a second preset duration, updating the proportional-integral control strategy, and controlling the motor to operate according to the updated proportional-integral control strategy. According to the technical scheme, the vehicle can be better controlled.

The present application relates to the technical field of piano, in particular to a piano pedal system, comprising an external unit and an additional unit; the external unit comprises: an external pedal module comprising at least one external pedal; a data acquisition module for acquiring the pedal data of the external pedal; a height adjustment module comprising a driving mechanism and two supporting mechanisms, the driving mechanism comprising a driving motor, a driving gear fixedly connected with the output shaft of the driving motor and two driving racks, the two driving racks being oppositely engaged on both sides of the driving gear, the supporting mechanisms being one-to-one arranged with the driving racks, the supporting mechanisms being connected between the driving racks and the external pedal module, the driving racks driving the supporting mechanisms to stretch or retract to realize the height adjustment of the external pedal module; the additional unit is used for stepping on the corresponding piano pedal according to the pedal data. The present application can be applied to different types and models of pianos and improve the accuracy and convenience of the height adjustment of the pedal.

The invention discloses an automobile braking energy recovery method considering a driving style. The method comprises the steps that the driving style of a driver and the comfortable time headway of the corresponding style are determined; wherein the driving styles comprise aggressive styles, ordinary styles and prudent styles; when the real-time headway is larger than the safe headway, the current braking intention of the driver is recognized according to the current accelerator pedal position, the accelerator pedal change rate and the difference value of the real-time headway relative to the comfortable headway; the types of the braking intention comprise light degree, light-medium degree, medium strength and emergency; if the current braking intention of the driver is mild or mild, a regenerative braking strategy is adopted; if the current braking intention of the driver is moderate, a regenerative braking and mechanical braking mixed strategy is adopted; and if the current braking intention of the driver is emergency, a mechanical braking strategy is adopted. The driving intention recognition accuracy can be improved, so that the driving comfort and the braking energy recovery efficiency are improved.