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Methods for verifying memory

A technology of memory and inspection time, applied in the field of memory inspection, can solve the problem of not having variable transmission ratio transmission and clutch, etc., and achieve the effect of the possibility of comfortable configuration

Active Publication Date: 2016-06-01
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to serious safety situations in the case of unintentionally generated torques, since transmissions and clutches with e.g. variable transmission ratios are usually not present in electric vehicles

Method used

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  • Methods for verifying memory
  • Methods for verifying memory
  • Methods for verifying memory

Examples

Experimental program
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Embodiment Construction

[0027] FIG. 1 shows a basic flow diagram of a method for testing at least one memory, for example a function monitoring memory of a function monitoring system. The method comprises a step 101 of executing a memory verification routine shown in FIG. 1 a , during which step 103 of verifying said at least one memory is performed, for example, a plurality of times. The memory test routine in step 105 is executed again after a predetermined time interval has elapsed or directly thereafter.

[0028] Execution of the memory check routine 101 can be carried out, for example, periodically, eg every 10 ms, by a superordinate control device, for example by a superordinate software task. In order to determine the number n of repetitions of step 103 of checking the at least one memory, it is also possible in step 107 to increment or decrement the counter reading. After the step 103 of detecting said at least one memory has been performed n times, the counter reading 107 is reset again. H...

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Abstract

The method involves executing a memory testing routine, and testing a memory e.g. RAM memory and e.g. ROM memory, by the memory testing routine. The memory testing routine is executed again after cycle of predetermined time intervals. Memory contents of the memory are transferred into an intermediate memory. The memory contents in the memory are overwritten with a predetermined digital pattern to produce a pattern storage content. The pattern storage content is read from the memory, and the digital pattern is compared with the pattern content to test the memory. Independent claims are also included for the following: (1) a control device of a vehicle drive i.e. electrical vehicle drive, to perform a method for testing a memory i.e. function monitoring memory, of a function testing system (2) a computer program with a program code for performing a method for testing a memory i.e. function monitoring memory, of a function testing system.

Description

technical field [0001] The present invention relates to the field of memory verification. Background technique [0002] In order to check the function of complex systems such as vehicle controls, functional tests are usually carried out in order to quickly recognize this in the event of a malfunction and subsequently take safety-relevant actions, such as switching off the electric drive of the vehicle. For this purpose, for example in vehicles with an electronic motor filling control system (so-called E-gas system), a 3-level (Ebenen) monitoring concept is usually implemented in the motor control unit. The core idea of ​​the 3-level monitoring concept is the mutual monitoring between the functional computer used in the motor control system and, for example, the individual modules used as so-called watchdogs. In this case, for example, the function computer and the monitoring module communicate via a query-response communication protocol and preferably have separate shutdown...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C29/52
CPCG11C29/52B60T2270/406B60W50/0205B60W2050/0005B60W2050/0006G11C2029/0401G11C2029/0409
Inventor 傅承煊
Owner ROBERT BOSCH GMBH