Abstract: Disclosed in the present invention are a wireless power and data synchronous transfer system and a data modulation method, wherein a power/information complex modulation is carried out on a primary side front converter and a secondary side back converter, and output power/information flow can be transmitted across the wireless power transfer circuit, thus realizing communication between the primary side and the secondary side. With the method of the present invention, by modulating a digital frequency band signal to a direct current bus, frequency mixing effect of an inverter/rectifier circuit is utilized to move a spectrum of modulated digital signal to a frequency near a power transfer frequency and then the modulated digital signal is transmitted to a circuit on the other side, and the circuit on the other side demodulates the signal to obtain a baseband signal. The present invention has wide applicability and can be used in various wireless power transfer systems, especially for high-frequency systems.

Abstract: A coupling-based non-contact type temperature measurement system includes a controller, a drive circuit connected to the controller, a switch circuit connected to the drive circuit, a resonance circuit connected to the switch circuit, a temperature sensor coupled to the resonance circuit, and a signal detection circuit connected to the resonance circuit and the controller. In the measurement system, the temperature sensor is isolated from other components of the system, and non-contact type temperature measurement of an object is implemented through electromagnetic coupling. Further provided is a measurement method of a coupling-based non-contact type temperature measurement system.

Abstract: A method for providing a trailer equipped with trailer brakes with an electronically controlled trailer braking output to help slow a vehicle/trailer combination as quickly as possible, but in a stable and balanced manner. In situations where a low friction environment is detected, such as a wet or icy road, the present method can brake the trailer in a more aggressive manner than a gain setting would normally allow. This gain-independent segment of the trailer braking output can result in a shorter stopping distance for the vehicle/trailer combination, without causing excessive trailer wheel lockup.

Abstract: A method for providing a trailer equipped with trailer brakes with an electronically controlled trailer braking output to help slow a vehicle/trailer combination as quickly as possible, but in a stable and balanced manner. In situations where a low friction environment is detected, such as a wet or icy road, the present method can brake the trailer in a more aggressive manner than a gain setting would normally allow. This gain-independent segment of the trailer braking output can result in a shorter stopping distance for the vehicle/trailer combination, without causing excessive trailer wheel lockup.

Abstract: An automotive multimedia entertainment system includes a head unit and a DVD player remote from and integrated with the head unit. Operation of the DVD player can be initiated by user interaction with the head unit. A method for interfacing a head unit with a DVD player comprises the initial step of initializing the DVD player. Next, the DVD player is monitored for communication failures and functional faults. The head unit enters a DVD normal operation mode if the DVD player is initialized and no communication failures or functional faults exist. If a communication failure or functional fault exists, the head unit enters a fault mode. If a communication failure or critical functional fault is confirmed, the DVD player enters a shutdown mode.