12143 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.

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.

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 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 “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.

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.

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.

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.

The invention discloses a vehicle torque control method and device, a computer readable storage medium and a vehicle, and relates to the field of vehicle control. The scheme comprises the steps that first torque is generated according to a vehicle torque request, and second torque is generated through filtering; generating a base torque gradient according to the vehicle state and the second torque; obtaining a corrected torque gradient according to the dynamic correction coefficient; generating a dynamic zero-crossing region threshold according to the vehicle state and the corrected torque gradient; and performing torque control on the zero-crossing region according to the dynamic zero-crossing region threshold. The threshold is dynamically adjusted based on the vehicle state, and it is ensured that the zero-crossing range meets the actual working condition requirement. The dynamic property and the smoothness are balanced through correction coefficient and gradient control, the dynamic response is guaranteed, meanwhile, precise control over the zero-crossing area is achieved, the problems of vehicle structural collision abnormal sound and the like are solved, meanwhile, the controllability of an accelerator pedal is enhanced, and the driving experience feeling of a user is improved.

A vehicle pedal resistance and dampener assembly includes a dampener module defining an interior fluid-filled cavity and adapted for generating a dampening force on the vehicle pedal. A pedal resistance module generates a resistance force on the vehicle pedal. The dampener module and the resistance module are moveable relative to each other. A shaft in the dampener module extends into and is moveable in a fluid-filled sleeve in the resistance module. A pedal position sensor senses and measures the position of the vehicle pedal. A pedal force sensor senses and measures the force on the vehicle pedal. A first resistance spring is located in the sleeve of the pedal resistance module, a second resistance spring surrounds the sleeve of the pedal resistance module, a third resistance spring surrounds the shaft of the dampener module, and a fourth resistance spring surrounds the third resistance spring.

The invention discloses an assembling device for a front foot ladder of a metal herringbone ladder. The assembling device comprises a ladder pipe feeding mechanism, a horizontal drilling mechanism, a foot sleeve mounting mechanism, a front foot ladder accessory shaping mechanism and a front foot ladder accessory shaping mechanism, the ladder pipe is horizontally transferred to a horizontal drilling station, the ladder pipe is clamped, horizontally transferred, clamped and fixed through a horizontal drilling mechanism, and the inner side of the ladder pipe is drilled and tapped or / and punched; the foot sleeve mounting mechanism jacks the foot sleeve into the tail end of the ladder pipe, and then applies external force to extrude and deform so as to fix and limit the foot sleeve at the tail end of the ladder pipe; the front foot ladder accessory shaping mechanism grabs ladder pipes, cross rods and top pedals, the ladder pipes, the cross rods and the top pedals are obliquely turned and placed at preset positions in a splayed shape, and frame installation of a front foot ladder is completed. The vertical drilling and tapping mechanism is used for transferring the front foot ladder to a vertical drilling and tapping station, and the cross rod and the top pedal are locked on the ladder pipe, so that the whole frame of the front foot ladder is fixed. The assembling device is reasonable in structure, easy to operate, high in automation degree and high in efficiency, and production benefits are maximized.

The invention provides a vehicle control method, a vehicle and a computer readable storage medium, and relates to the field of vehicle control, the method comprises the following steps: when it is judged that the vehicle slides downwards due to the action of gravity during a climbing period, if a brake pedal stroke is received, obtaining a first braking force distributed for wheels according to the brake pedal stroke, under the condition that the first braking force is larger than the wheel braking force extreme value, the first braking force is reduced to be smaller than the wheel braking force extreme value, second braking force is obtained, the service braking system is controlled to apply braking force to the wheels based on the second braking force, the slip rate of the wheels is obtained, and when the slip rate of the wheels is smaller than the minimum value of the threshold value interval, braking is conducted. And a power system and / or a parking braking system are / is controlled to conduct braking force compensation on the wheels so that the slip rate of the wheels can be within the threshold value interval. According to the method, the vehicle can be prevented from losing stability under the condition that the vehicle falls down or slips, and the stability and safety of the vehicle in a cross-country scene can be improved.

The invention relates to the field of vehicle driving motor control, and particularly discloses a wheel side driving motor working state control method and device, and the method comprises the steps: obtaining the instantaneous whole vehicle demand torque according to the real-time accelerator pedal opening degree and the real-time vehicle speed; according to the road gradient and the real-time vehicle speed, the whole vehicle demand torque is predicted; the minimum value of the instantaneous whole vehicle demand torque and the predicted whole vehicle demand torque is taken as the actual whole vehicle demand torque; and controlling the working state of the driving motor according to the actual vehicle demand torque. According to the method, unreasonable driving of a driver is restrained, the actual whole vehicle demand torque is determined by calculating and predicting the whole vehicle demand torque and combining the instantaneous whole vehicle demand torque, power demands of the vehicle under different road conditions and loads are matched, insufficient or excessive power is avoided, the vehicle runs more smoothly, the safety of vehicle driving is improved, and the driving safety of the vehicle is improved. Overload of vehicle mechanical parts is avoided, the service life of the vehicle mechanical parts is prolonged, the working state of the driving motor is reasonably controlled, and energy consumption and vehicle operation cost are reduced.

The invention is suitable for the technical field of drifting control, and provides an electric vehicle auxiliary drifting control method which comprises the following steps: calculating an ideal drifting balance point and related parameters under any working condition according to vehicle dynamics and a tire model; when the vehicle is in the specific driving mode, judging whether an auxiliary drift intervention threshold value is reached or not according to the driver operation and the vehicle state, and if yes, starting auxiliary drift control. According to the control, through a feedforward and feedback mode, the torque of front and rear wheels cooperatively works to achieve drifting. And meanwhile, the torque of different sources is adjusted by using the weight coefficient so as to adjust the auxiliary drift intervention intensity. When it is detected that the accelerator pedal of the driver is smaller than the threshold value, the auxiliary drifting quit threshold value is reached, and control quits immediately. The auxiliary drifting can be timely intervened when the driver does not operate the steering wheel, the driving threshold is lowered, the dependence on the steering wheel is reduced, and the driving experience is optimized; personalized adjustment can be achieved, the drifting safety is improved, and a driver can enjoy drifting pleasure at ease.

A vehicle acceleration control method, includes: obtaining a change rate of an accelerator pedal opening degree of an accelerator pedal and a remaining energy value of a vehicle in a racetrack mode; determining a target torque compensation value based on the change rate of the accelerator pedal opening degree and the remaining energy value of the vehicle; and controlling the vehicle to accelerate based on a sum of the target torque compensation value and a maximum output torque value.

The utility model discloses a support assembly of an automobile electric pedal, which relates to the technical field of automobile electric pedals and comprises a base and a supporting portion, a first rotating arm and a second rotating arm are arranged between the base and the supporting portion, and two ends of the first rotating arm and two ends of the second rotating arm are respectively and rotatably connected with the base and the supporting portion. The driving element drives the first rotating arm to rotate, the second rotating arm rotates synchronously, and the first rotating arm and the second rotating arm drive the supporting part to move horizontally in the X direction, the Y direction and the Z direction. The double rotating arms are adopted, the stability of the supporting part is guaranteed, the supporting part can be directly used as a pedal, the requirement for the stability of the pedal can be met only through one support assembly, and the production cost is saved.

A stowable tailgate step assembly system comprises a frame with two interconnected frame arms adapted to be mounted longitudinally in a vehicle tailgate. A slide module, releasably latched to the frame, comprises two longitudinal carrier arms which translate in relation to the frame arms, and a step assembly. The step assembly comprises two slide arms which translate in relation to the carrier arms, and a first step and at least one additional step pivotally connected by at least one link rod to facilitate synchronous rotation of the steps. Control means to control rotation of the steps during translation of the carrier arms from a stowed position to an extended position are provided. Deployment means to control rotation of the steps between the extended position and a deployed position are also provided. A lock-out latch rotationally connected to at least one carrier arm engages at least one associated frame arm to prevent translation of the carrier arm in relation to the associated frame arm when the step assembly is in the extended position.