Puller disc with composite surface trajectory and pressure plate

Abstract

A jackpot with a composite surface trajectory includes a jackpot track for accommodating a jackpot bead; wherein the surface of the jackpot track is constructed with a plurality of track trajectories that are interconnected, and at least two of the track trajectories are defined independently and distinctly from each other, and the distance between each track trajectories and the bottom of the jackpot track is different and corresponds to different speed ranges of a vehicle, the plurality of track trajectories being selected from at least one or more combinations of straight lines, arcs with concave surfaces facing the opening of the jackpot track, arcs with convex surfaces facing the opening of the jackpot track, variable curvature curves, S-curves, and free curves.

Claims

1. A pudding disc with a composite surface track, comprising a pudding disc track for accommodating a pudding bead; wherein, The surface of the jackpot track is constructed with a plurality of track tracks that are connected to each other, and at least two of the track tracks are defined independently and are different from each other. The distance between each track track and the bottom of the jackpot track is different and corresponds to different speed ranges of a vehicle. The plurality of track tracks are selected from at least one or more combinations of straight lines, arcs with concave surfaces facing the opening of the jackpot track, arcs with convex surfaces facing the opening of the jackpot track, variable curvature curves, S-curves, and free curves.

2. The plural as described in claim 1, wherein, The plebead is either a sphere or a cylinder.

3. The plural as described in claim 1, wherein, The number of the Pluribe bead paths is multiple, and some of these Pluribe bead paths are radially distributed, and the corresponding paths have the same trajectory.

4. The plural as described in claim 1, wherein, The pulley bead forms at least one contact point with the individually defined track paths. Each contact point defines a track tangent and a track inclination angle defined with respect to a rotation axis of the pulley bead. A portion of the track paths between the contact start point and the contact end point of the pulley bead path exhibits a trend of first gradually decreasing and then increasing, or a trend of first gradually increasing and then decreasing.

5. The plural as described in claim 4, wherein, A portion of the bead track forms a contact point, which is the position within the bead track that guides the plebead most towards the axis of rotation.

6. The plural as described in claim 1, wherein, The intersection between two adjacent bead tracks forms a concave point. One of the two adjacent bead tracks is an arc track with its concave surface facing the opening of the Plex bead track, and the other of the two adjacent bead tracks is an arc track with its convex surface facing the opening of the Plex bead track.

7. The plural as described in claim 1, wherein, The design method for at least two ball track trajectories includes the following steps: Establishing a transient dynamic balance function model for a vehicle corresponding to the total wheel drive thrust function required by the vehicle, which is obtained based on actual measurements and corresponds to the required wheel thrust across multiple speed ranges; Defining a theoretical pulley variable thrust function, satisfying the relationship Fv(θ, ω) = Fa⊥ + Fb⊥, where Fv(θ, ω) is the theoretical pulley variable thrust function, Fa⊥ is the vertical component of the surface contact force between the pulley ball and the pulley track, and Fb⊥ is the vertical component of the surface contact force between the pulley ball and a pressure plate; and Establishing a function model corresponding to the total wheel drive thrust function required by the vehicle and the theoretical pulley variable thrust function, satisfying the relationship Fd(v) ≈ Ft(θ, ω) * R(v). Where Fd(v) is the total on-wheel drive thrust function required by the vehicle, Ft(θ, ω) is the target thrust function of the pulley and corresponds to the theoretical pulley variable thrust function, and R(v) is the sensitivity ratio function to reflect the effect of the change of the target thrust function of the pulley on the total on-wheel drive thrust function required by the vehicle.

8. The plural as described in claim 7, wherein, The total drive thrust function required by the vehicle at the wheels is obtained based on a set parameter, which is selected from at least one of the following: reduction ratio, vehicle speed, acceleration, and engine speed.

9. The plural as described in claim 7, wherein, The total on-wheel drive thrust function required by the vehicle and the theoretical pulley transmission thrust function satisfy the following relationship: Ft(θ, ω) = Ke * Fv(θ, ω), where Ke is a correction coefficient used to reflect the variation between the target pulley thrust function and the theoretical value of the theoretical pulley transmission thrust function.

10. The plural as described in claim 7, wherein, The transient dynamic balance function model of the vehicle includes the following relationship: Fd(v) = Fw(v) + Fr(v) + Fm(v) where Fd(v) is the total driving thrust function required by the vehicle at the wheels during transient dynamic balance, Fw(v) is the wind resistance function, Fr(v) is the wheel resistance function, and Fm(v) is other friction and loss functions.

11. The plural as described in claim 7, wherein, The sensitivity ratio function is constructed to make the target thrust function of the pulley match the total on-wheel drive thrust function required by the vehicle.

12. A pressure plate for use in a pudding disc, the pudding disc including a pudding disc bead track for receiving a pudding bead; wherein, The pressure plate has a pressure plate contact surface for contacting the surface of the jack bead. The pressure plate contact surface constructs a plurality of pressure plate tracks that are interconnected, and at least two of the pressure plate tracks are defined independently and differently from each other. Each pressure plate track is at a different distance from the rotation axis of the pressure plate and corresponds to a different speed range of a vehicle. The plurality of pressure plate tracks are selected from at least one or more combinations of straight lines, arcs with concave surfaces facing the jack bead track, arcs with convex surfaces facing the jack bead track, variable curvature curves, S-curves, and free curves.

13. The pressure plate as described in claim 12, wherein, The number of the pulley bead channels is multiple, some of which are radially distributed and have the same contact surface with the corresponding pressure plates.

14. The pressure plate as described in claim 12, wherein, The intersection of two adjacent pressure plate tracks forms a concave point. One of the two adjacent pressure plate tracks is an arc track with its concave surface facing the jack bead path, and the other of the two adjacent pressure plate tracks is an arc track with its convex surface facing the jack bead path.

15. The pressure plate as described in claim 12, wherein, The design method for at least two pressure plate trajectories includes the following steps: Establishing a transient dynamic balance function model for a vehicle corresponding to the total wheel drive thrust function required by the vehicle, where the total wheel drive thrust function is obtained based on actual measurements and corresponds to the required wheel thrust across multiple speed ranges; Defining a theoretical pulley variable thrust function, satisfying the relationship Fv(θ, ω) = Fa⊥ + Fb⊥, where Fv(θ, ω) is the theoretical pulley variable thrust function, Fa⊥ is the vertical component of the surface contact force between the pulley bead and the pulley track, and Fb⊥ is the vertical component of the surface contact force between the pulley bead and the pressure plate contact surface; and Establishing a function model corresponding to the total wheel drive thrust function required by the vehicle and the theoretical pulley variable thrust function, satisfying the relationship Fd(v) ≈ Ft(θ, ω) * R(v). Where Fd(v) is the total on-wheel drive thrust function required by the vehicle, Ft(θ, ω) is the target thrust function of the pulley and corresponds to the theoretical pulley variable thrust function, and R(v) is the sensitivity ratio function to reflect the effect of the change of the target thrust function of the pulley on the total on-wheel drive thrust function required by the vehicle.

16. The pressure plate as described in claim 15, wherein, The total drive thrust function required by the vehicle at the wheels is obtained based on a set parameter, which is selected from at least one of the following: reduction ratio, vehicle speed, acceleration, and engine speed.

17. The pressure plate as described in claim 15, wherein, The total on-wheel drive thrust function required by the vehicle and the theoretical pulley transmission thrust function satisfy the following relationship: Ft(θ, ω) = Ke * Fv(θ, ω), where Ke is a correction coefficient used to reflect the variation between the target pulley thrust function and the theoretical value of the theoretical pulley transmission thrust function.

18. The pressure plate as described in claim 15, wherein, The sensitivity ratio function is constructed to make the target thrust function of the pulley match the total on-wheel drive thrust function required by the vehicle.

Images