The disclosure discloses a method and device for controlling linear brakes of remote control model racing cars; the user sends a remote-control command to a motor control module of the model car through a remote controller; the remote-control command includes a braking command; the braking command includes the current throttle value; when remote-control command a braking command is sent, the motor control module selects the appropriate braking algorithm according to the current brushless motor speed; if the current brushless motor speed is greater than the first threshold, the field-oriented control (Foc) brake control algorithm is selected according to the received remote-control command and controls the braking current of the brushless motor; if the current brushless motor speed is less than or equal to the first threshold, the braking algorithm is switched based on pulse width modulation (PWM) control according to the received remote-control command and controls the braking current of the brushless motor; the brushless motor controls the braking torque of the braking transmission system according to the braking current. Compared with the prior art, various brake control algorithms are selected based on different motor speeds, and the FOC control algorithm is used to achieve linear braking.

A battery powered toy car has a large momentary pushbutton on its top surface that is suitable for a small child to smash down on the pushbutton with his fist thus activating the pushbutton. When the pushbutton is pressed, the car will drive forward for a given amount of time or distance such as 10 feet and then stop until the pushbutton is depressed again. When the pushbutton is depressed again, the car will again drive forward for another 10 feet. A race between two such cars thus involves children running behind or alongside of the cars and smashing down on the cars every 10 feet in order to keep the cars moving forward. In this way a race between the cars actively involves children as running participants in the race and involves eye-hand coordination.

An audio system and method using indoor response estimation are disclosed. An acoustic feature prediction method of the audio system may include generating a detection signal based on an input signal and a modulation code; generating an acoustic signal based on the detection signal and outputting the acoustic signal to a plurality of speakers; measuring acoustic signals output from the speakers where the speakers are installed; and predicting acoustic features related to the speakers based on the measured acoustic signals and the modulation code.

The present invention provides a model vehicle having a motor and electronic speed control for driving and braking driven wheels, combined with a separate braking system for non-driven wheels. A controller and a method of operation are provided.

The present invention provides a model vehicle having a motor and electronic speed control for driving and braking driven wheels, combined with a separate braking system for non-driven wheels. A controller and a method of operation are provided.

The disclosure discloses a method and device for controlling linear brakes of remote control model racing cars; the user sends a remote-control command to a motor control module of the model car through a remote controller; the remote-control command includes a braking command; the braking command includes the current throttle value; when remote-control command a braking command is sent, the motor control module selects the appropriate braking algorithm according to the current brushless motor speed; if the current brushless motor speed is greater than the first threshold, the field-oriented control (Foc) brake control algorithm is selected according to the received remote-control command and controls the braking current of the brushless motor; if the current brushless motor speed is less than or equal to the first threshold, the braking algorithm is switched based on pulse width modulation (PWM) control.

The disclosure discloses a method and device for controlling linear brakes of remote control model racing cars; the user sends a remote-control command to a motor control module of the model car through a remote controller; the remote-control command includes a braking command; the braking command includes the current throttle value; when remote-control command a braking command is sent, the motor control module selects the appropriate braking algorithm according to the current brushless motor speed; if the current brushless motor speed is greater than the first threshold, the field-oriented control (Foc) brake control algorithm is selected according to the received remote-control command and controls the braking current of the brushless motor; if the current brushless motor speed is less than or equal to the first threshold, the braking algorithm is switched based on pulse width modulation (PWM) control.

Devices, systems, and methods of enhancing the gameplay of a toy are disclosed herein. For example, the toy can be a remotely controlled vehicle that includes a radio frequency identification (RFID) reader, configured to detect signals generated by a plurality of markers with RFID tags. Each marker of the plurality can be arranged such that the markers define a course for the remotely controlled vehicle. Certain markers can be designated as a starting line, a finish line, and special, which would enable programmable and variable gameplay features and actions of the remotely controlled vehicle. The remotely controlled vehicle can be communicably coupled to a mobile computing device configured to receive and process signals from the vehicle, display metrics associated with the gameplay, enable immediate functioning of special tag features, display metrics, and generate control codes transmitted to the vehicle, which control certain features in accordance with the programmed gameplay.

Devices, systems, and methods of enhancing the gameplay of a toy are disclosed herein. For example, the toy can be a remotely controlled vehicle that includes a radio frequency identification (RFID) reader, configured to detect signals generated by a plurality of markers with RFID tags. Each marker of the plurality can be arranged such that the markers define a course for the remotely controlled vehicle. Certain markers can be designated as a starting line, a finish line, and special, which would enable programmable and variable gameplay features and actions of the remotely controlled vehicle. The remotely controlled vehicle can be communicably coupled to a mobile computing device configured to receive and process signals from the vehicle, display metrics associated with the gameplay, enable immediate functioning of special tag features, display metrics, and generate control codes transmitted to the vehicle, which control certain features in accordance with the programmed gameplay.