Toy vehicle system
First Claim
1. A toy vehicle system comprising:
- a toy vehicle defining a longitudinal vehicle axis;
a remote control transmitter;
said toy vehicle having a drive including at least a first drive motor and a second drive motor;
said toy vehicle further having at least a first roller element and a second roller element configured to transfer frictional forces and drive torque to a ground;
said first roller element defining a first rotational axis;
said second roller element defining a second rotational axis;
said first and second roller elements being configured to be independently driven about respective ones of said first rotational axis and said second rotational axis;
at least one steering device configured to adjust an orientation direction of said first rotational axis and said second rotational axis relative to said longitudinal vehicle axis;
a control unit configured to receive control input signals from said remote control transmitter and to generate control output signals configured to act on said first drive motor, said second drive motor and said at least one steering device;
said control unit being configured to call up a virtual adhesive force limit Fm as well as a virtual sliding frictional force Fg between said toy vehicle and the ground;
said virtual adhesive force limit Fm being smaller than a corresponding actually transferable maximum frictional force between said first roller element and said second roller element and the ground;
wherein said virtual sliding frictional force Fg≤
said virtual adhesive force limit Fm;
said control unit being configured for a computational driving simulation with incorporation of said control input signals of said remote control transmitter such that;
said control unit computationally determines an uncorrected operational frictional force Fb acting between said toy vehicle and the ground, and compares said uncorrected operational frictional force Fb to said virtual adhesive force limit Fm;
wherein, in a normal mode, in which said computationally determined uncorrected operational frictional force Fb is less than said virtual adhesive force limit Fm, a driving behavior of said toy vehicle is computationally simulated under local action of a virtual operational frictional force Fv at the level of said uncorrected operational frictional force Fb;
wherein, in a skidding mode, in which said computationally determined uncorrected operational frictional force Fb is greater than said virtual adhesive force limit Fm, the driving behavior of said toy vehicle is simulated under local action of a virtual operational frictional force Fv at the level of said virtual sliding frictional force Fg; and
,said control unit being further configured to, from said computational driving simulation, generate control signals and have them act on said drive with said first roller element and said second roller element as well as said at least one steering device such that said toy vehicle performs a driving motion according to said computational driving simulation under action of said virtual operational frictional force Fv.
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Accused Products
Abstract
A toy vehicle system includes a toy vehicle, a remote-control transmitter and a control unit. The toy vehicle includes a drive with at least two drive motors and at least two roller elements. The roller elements are mutually independently driven rotationally about respective axes of rotation via the drive motors. The toy vehicle further includes at least one steering mechanism for adjusting the directions of orientation of the axes of rotation relative to the longitudinal axis of the vehicle. Input signals of the remote-control are fed into the control unit. The control unit generates output signals that act on the drive and the steering mechanism. In the operating method, the control unit carries out a computational driving simulation and generates therefrom control output signals such that the toy vehicle carries out a vehicle movement according to the computational driving simulation under the action of a virtual operating frictional force.
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Citations
26 Claims
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1. A toy vehicle system comprising:
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a toy vehicle defining a longitudinal vehicle axis; a remote control transmitter; said toy vehicle having a drive including at least a first drive motor and a second drive motor; said toy vehicle further having at least a first roller element and a second roller element configured to transfer frictional forces and drive torque to a ground; said first roller element defining a first rotational axis; said second roller element defining a second rotational axis; said first and second roller elements being configured to be independently driven about respective ones of said first rotational axis and said second rotational axis; at least one steering device configured to adjust an orientation direction of said first rotational axis and said second rotational axis relative to said longitudinal vehicle axis; a control unit configured to receive control input signals from said remote control transmitter and to generate control output signals configured to act on said first drive motor, said second drive motor and said at least one steering device; said control unit being configured to call up a virtual adhesive force limit Fm as well as a virtual sliding frictional force Fg between said toy vehicle and the ground; said virtual adhesive force limit Fm being smaller than a corresponding actually transferable maximum frictional force between said first roller element and said second roller element and the ground; wherein said virtual sliding frictional force Fg≤
said virtual adhesive force limit Fm;said control unit being configured for a computational driving simulation with incorporation of said control input signals of said remote control transmitter such that; said control unit computationally determines an uncorrected operational frictional force Fb acting between said toy vehicle and the ground, and compares said uncorrected operational frictional force Fb to said virtual adhesive force limit Fm; wherein, in a normal mode, in which said computationally determined uncorrected operational frictional force Fb is less than said virtual adhesive force limit Fm, a driving behavior of said toy vehicle is computationally simulated under local action of a virtual operational frictional force Fv at the level of said uncorrected operational frictional force Fb; wherein, in a skidding mode, in which said computationally determined uncorrected operational frictional force Fb is greater than said virtual adhesive force limit Fm, the driving behavior of said toy vehicle is simulated under local action of a virtual operational frictional force Fv at the level of said virtual sliding frictional force Fg; and
,said control unit being further configured to, from said computational driving simulation, generate control signals and have them act on said drive with said first roller element and said second roller element as well as said at least one steering device such that said toy vehicle performs a driving motion according to said computational driving simulation under action of said virtual operational frictional force Fv. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A toy system comprising:
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a toy vehicle having a drive with a first and a second roller element configured to transfer frictional forces to a ground and a steering device; a remote control transmitter; a control unit configured to receive control input signals from said remote control transmitter and to generate control output signals configured to act on said drive and on the steering device; said control unit being configured to call up a virtual adhesive force limit Fm as well as a virtual sliding frictional force Fg between said toy vehicle and the ground; said virtual adhesive force limit Fm being smaller than a corresponding actually transferable maximum frictional force between said first roller element and said second roller element and the ground; said virtual sliding frictional force Fg≤
said virtual adhesive force limit Fm;said control unit being configured for a computational driving simulation with incorporation of said control input signals of said remote control transmitter such that; said control unit computationally determines an uncorrected operational frictional force Fb acting between said toy vehicle and the ground, and compares said uncorrected operational frictional force Fb to said virtual adhesive force limit Fm; wherein, in a normal mode, in which said computationally determined uncorrected operational frictional force Fb is less than said virtual adhesive force limit Fm, a driving behavior of said toy vehicle is computationally simulated under local action of a virtual operational frictional force Fat the level of said uncorrected operational frictional force Fb; wherein, in a skidding mode, in which said computationally determined uncorrected operational frictional force Fb is greater than said virtual adhesive force limit Fm, the driving behavior of said toy vehicle is simulated under local action of a virtual operational frictional force Fv at the level of said virtual sliding frictional force Fg; and
,said control unit is further configured to, from said computational driving simulation, generate control signals and have them act on said drive with said first roller element and said second roller element as well as said at least one steering device such that said toy vehicle performs a driving motion according to said computational driving simulation under action of said virtual operational frictional force Fv.
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21. A method of operating a toy vehicle system, the toy vehicle system including a toy vehicle having a drive with first and second roller elements configured to transfer frictional forces to a ground and a steering device, a remote control transmitter, a control unit configured to receive control input signals from said remote control transmitter and to generate control output signals configured to act on said drive and on the steering device, said control unit being configured to call up a virtual adhesive force limit Fm as well as a virtual sliding frictional force Fg between said toy vehicle and the ground, said virtual adhesive force limit Fm being smaller than a corresponding actually transferable maximum frictional force between said first roller element and said second roller element and the ground, said virtual sliding frictional force Fg≤
- said virtual adhesive force limit Fm; and
,said control unit being configured for a computational driving simulation with incorporation of said control input signals of said remote control transmitter such that the method comprises the steps of; computationally determining an uncorrected operational frictional force Fb acting between said toy vehicle and the ground via said control unit; comparing said uncorrected operational frictional force Fb to said virtual adhesive force limit Fm; computationally simulating, in a normal mode wherein said computationally determined uncorrected operational frictional force Fb is less than said virtual adhesive force limit Fm, a driving behavior of said toy vehicle under local action of a virtual operational frictional force Fv at the level of said uncorrected operational frictional force Fb; simulating, in a skidding mode wherein said computationally determined uncorrected operational frictional force Fb is greater than said virtual adhesive force limit Fm, a driving behavior of said toy vehicle under local action of said virtual operational frictional force Fv at the level of said virtual sliding frictional force Fg; and
,generating control signals from said computational driving simulation via said control unit and having them act on said drive with said first roller element and said second roller element as well as said at least one steering device such that said toy vehicle performs a driving motion according to said computational driving simulation under action of said virtual operational frictional force Fv. - View Dependent Claims (22, 23, 24, 25, 26)
- said virtual adhesive force limit Fm; and
Specification