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Calculation unit for controller and method of operation thereof

A computing unit and controller technology, applied in general control systems, using stored programs for program control, program control, etc., can solve the problems of signal loss on the receiving side, failure to provide processing progress in time, loss of signal values, etc.

Active Publication Date: 2020-02-18
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unfavorable consequence of this is that on the receiving side the signal can be "lost" because data a) is not fetched from the bus in time or b) is not provided to the processing process in time
For the same reason, signal values ​​can be "lost" on the sending side, because e.g. sending slots are missed on the F1exray bus

Method used

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  • Calculation unit for controller and method of operation thereof
  • Calculation unit for controller and method of operation thereof
  • Calculation unit for controller and method of operation thereof

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 A block diagram of an embodiment of a controller 100 according to the invention, for example of a motor vehicle, is shown schematically. A sensor S providing sensor data, for example a rotational speed sensor for a crankshaft rotational speed of an internal combustion engine of a motor vehicle, is connected to the controller 100 . Also connected to the controller 100 is an actuator or actuator A that operates, for example, a nozzle.

[0024] Controller 100 is also connected to bus system 200 , which generally enables bidirectional communication with other devices (not shown) connected to bus system 200 , such as other controllers or the like. The bus system can be, for example, FlexRay / CAN / LIN or another data bus.

[0025] For processing the sensor data and for controlling the actuator A, for example on the basis of the sensor data, the controller 100 has a computing unit 110 which can be, for example, a microcontroller or a DSP. Other implementations (ASIC,...

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PUM

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Abstract

The invention relates to a computing unit for a controller and its operating method. A method for operating a computing unit (110) of a controller (100) in data connection to a bus system (200) is disclosed, characterized in that the computing unit (110), in particular in the computing unit (110 The operating system (OS) running on ) is synchronized (300) with the bus system (200), and the main process (T1) running on the computing unit (110) is set, and the main process a) periodically slaves from the bus system (200 ) receive (310) data and provide (320) the received data to at least one other process (T2a, T2b, T2c) also running on the computing unit (110), and / or b) from at least one process ( T3) Extract (350) the data to be sent from the computing unit (110) to the bus system (200) and transfer (360) to the bus system (200).

Description

technical field [0001] The invention relates to a method for operating a computing unit of a controller in data connection to a bus system. [0002] The invention also relates to a computing unit for such a controller. Background technique [0003] Known controllers or their computing units are typically connected from a bus system or network (e.g. CAN (Controller Area Network), LIN (Local Interconnect Network), FlexRay, Ethernet (Ethernet )) or sensors (e.g. pressure sensors in the combustion chamber of an internal combustion engine, rotational speed sensors) read in data, process these data internally and then send them out again, for example to an actuator directly coupled to the controller (e.g. nozzles on the engine), or to other controllers via the bus system. Disadvantageously, the signal propagation times and system reaction times associated with (sensor) data are indeterminate (= from known, predictable durations) for many situations, since bus systems such as Fle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/52G06F13/36G05B19/042
CPCG06F9/52G06F9/06G06F13/14G06F13/38
Inventor A·凯泽A·朗
Owner ROBERT BOSCH GMBH