摘要:
The invention provides an apparatus and method for checking the integrity of visual display information and has particular application to checking images displayed in an automotive vehicle, such images containing safety critical information. The image intensity is checked only to an extent commensurate with a human being able to interpret its correct meaning. Hence, images which are defective in some way yet still recognisable by the human eye are not classified as failures. In one embodiment, a part of the image containing safety critical information is segmented into smaller areas and the luminance of pixels in each segmented area is compared with a threshold brightness level and a threshold darkness level. A histogram for each area is generated and compared with a reference.
摘要:
In an uppermost wiring plane of a mass-produced circuit of a micro-controller, contact faces are provided. To produce an emulation circuit a further wiring plane is added to the mass-produced circuit by way of which internal signals are carried to an external terminal. Acting as an interface is an output chip with further emulation logic capabilities which is applied to the emulation circuit in the manner of a flip-chip assembly.
摘要:
An electronic device is for controlling motor drive circuits for driving a multi-phase motor in a force assisted system. Each motor drive circuit selectively permitting current to flow into or out of a respective phase of the multi-phase motor connected to the motor drive circuit in response to being driven by respective control signals. A motor control circuit generates the control signals. A fault processor detects at least one fault condition causing a fault current in a first motor drive circuit. In the event of the fault condition being detected, at least one alternative control signal is generated for at least one motor drive circuit for permitting at least one compensation current to flow for reducing a faulty force due to the fault current.
摘要:
A coding method for coding control commands for actuators includes a system that is sensitive to data transmission errors and determines a degree of danger for the system by using a system control unit. A current transmission control command is coded to form a control command code word, by using the system control device, whereby the redundancy of the control command code word depends on the determined degree of danger. The control command code word from the system control device is transmitted to an actuator control unit and decoded to form a receiving control command. The receiving control command is checked for transmission errors and at least one actuator for carrying out the receiving control command is controlled when no transmission error is detected. An actuator control unit conducts the method.
摘要:
An electronic device is for controlling motor drive circuits for driving a multi-phase motor in a force assisted system. Each motor drive circuit selectively permitting current to flow into or out of a respective phase of the multi-phase motor connected to the motor drive circuit in response to being driven by respective control signals. A motor control circuit generates the control signals. A fault processor detects at least one fault condition causing a fault current in a first motor drive circuit. In the event of the fault condition being detected, at least one alternative control signal is generated for at least one motor drive circuit for permitting at least one compensation current to flow for reducing a faulty force due to the fault current.
摘要:
A device and method are provided in which the data to be transmitted is transmitted in units together with information concerning the transmission and/or the use of the data. At least some of the units include at least one region which defines a time slot within which freely selectable devices can output onto the bus data representing freely selectable information at freely selectable points in time.
摘要:
Digital circuits and methods for testing a digital circuit are disclosed. One embodiment provides a digital circuit having a first plurality of storage elements, and a second plurality of storage elements. The digital circuit is operable in a first operation mode and in a second operation mode. In the first operation mode, the storage elements of the first plurality of storage elements operate according to their intended use within the digital circuit and the storage elements of the second plurality of storage elements are connected in series. In the second operation mode, the first plurality of storage elements is connected to the second plurality of storage elements to allow data exchange between the first plurality of storage elements and the second plurality of storage elements.
摘要:
An arrangement having a data processing device and a memory for storing data which is required by the data processing device is described. The described arrangement is defined by the fact that it contains a checking device which generates signature data when data is read out of the memory, compares the generated signature data with signature data which is fed to the checking device and is assigned to the data which is output from the memory, and determines, as a function of the result of this comparison, whether the data which is output from the memory can be released for use by the data processing device.
摘要:
A coding method for coding control commands for actuators includes a system that is sensitive to data transmission errors and determines a degree of danger for the system by using a system control unit. A current transmission control command is coded to form a control command code word, by using the system control device, whereby the redundancy of the control command code word depends on the determined degree of danger. The control command code word from the system control device is transmitted to an actuator control unit and decoded to form a receiving control command. The receiving control command is checked for transmission errors and at least one actuator for carrying out the receiving control command is controlled when no transmission error is detected. An actuator control unit conducts the method.
摘要:
Digital circuits and methods for testing a digital circuit are disclosed. One embodiment provides a digital circuit having a first plurality of storage elements, and a second plurality of storage elements. The digital circuit is operable in a first operation mode and in a second operation mode. In the first operation mode, the storage elements of the first plurality of storage elements operate according to their intended use within the digital circuit and the storage elements of the second plurality of storage elements are connected in series. In the second operation mode, the first plurality of storage elements is connected to the second plurality of storage elements to allow data exchange between the first plurality of storage elements and the second plurality of storage elements.