Abstract: A circuit screening system including a target circuit under test receiving a first testing signal in a first period and a second testing signal in a second period; and a clock generating circuit providing a clock signal to the target circuit under test, the clock signal triggering the target circuit under test to receive the first testing signal in the first period and the second testing signal in the second period; the clock signal having a first profile and a second profile in the first period and the second period, respectively, and the first profile and the second profile having a phase difference.

Abstract: The present disclosure relates to methods and associated systems for unlocking a vehicle. The vehicle has a first input device and a second input device. The method includes (1) receiving a passcode from the first input device; (2) receiving a confirmation of the passcode from the second input device; and (3) in response to the confirmation, storing the passcode in a storage device associated with the vehicle. The passcode is input by operating the first input device in a first predetermined way, and, the confirmation is input by operating the second input device in a second predetermined way.

Abstract: Method and associated system for managing and/or authenticating an energy storage device. The method includes receiving a first portion of identification information stored in a data storage attached to the energy storage device (401); analyzing the first portion of the identification information at least partially based on a device identification of the device (403); updating a second portion of the identification information stored in the data storage attached to the energy storage device based on a result of analyzing the first portion of the identification information (405).

Abstract: The present disclosure relates to apparatus and methods for locking and/or unlocking a vehicle based on a location of a mobile device associated with the vehicle. In one embodiment a processor in a vehicle analyzes a position of a mobile device relative to the vehicle and allows the vehicle to be unlocked when the mobile device is determined to be approaching the vehicle.

Abstract: A vehicle includes a battery connecting module and a processor. The battery connecting module is configured to couple to at least one rechargeable battery. The processor is configured to: determine whether the battery module is coupled to a charging device; in response to the battery module being coupled to the charging device, transmit a permission request to a server; and in response to receiving a charging permission corresponding to the permission request from the server, allow the at least one rechargeable battery to be charged by the charging device.

Abstract: The present disclosure is directed to methods, devices, and systems for playing audio signals associated with an electric in vehicle. The method includes, for example, (1) determining a speed of the electric vehicle; (2) receiving, from a memory, a plurality of sound frequency characteristics corresponding to the determined speed of the electric vehicle; and (3) generating an audio signal segment corresponding to the received sound frequency characteristics by a speaker of the electric vehicle. The sound frequency characteristics include a plurality of segments. Each of the segments includes an amplitude of a number of frequency characteristics in a sound produced by a powertrain assembly (e.g., an electric motor) in a speed range.

Abstract: The present disclosure is directed to methods, devices, and systems for playing audio signals associated with an electric in vehicle. The method includes, for example, (1) determining a speed of the electric vehicle; (2) receiving, from a memory, a plurality of sound frequency characteristics corresponding to the determined speed of the electric vehicle; and (3) generating an audio signal segment corresponding to the received sound frequency characteristics by a speaker of the electric vehicle. The sound frequency characteristics include a plurality of segments. Each of the segments includes an amplitude of a number of frequency characteristics in a sound produced by a powertrain assembly (e.g., an electric motor) in a speed range.

Abstract: The present disclosure relates to apparatus and methods for locking and/or unlocking a vehicle based on a location of a mobile device associated with the vehicle. In one embodiment a processor in a vehicle analyzes a position of a mobile device relative to the vehicle and allows the vehicle to be unlocked when the mobile device is determined to be approaching the vehicle.

Abstract: A vehicle includes a battery connecting module and a processor. The battery connecting module is configured to couple to at least one rechargeable battery. The processor is configured to: determine whether the battery module is coupled to a charging device; in response to the battery module being coupled to the charging device, transmit a permission request to a server; and in response to receiving a charging permission corresponding to the permission request from the server, allow the at least one rechargeable battery to be charged by the charging device.

Abstract: The present disclosure relates to methods and associated systems for unlocking a vehicle. The vehicle has a first input device and a second input device. The method includes (1) receiving a passcode from the first input device; (2) receiving a confirmation of the passcode from the second input device; and (3) in response to the confirmation, storing the passcode in a storage device associated with the vehicle. The passcode is input by operating the first input device in a first predetermined way, and, the confirmation is input by operating the second input device in a second predetermined way.