Method and device for recording vehicle data
First Claim
1. A method for recording data from parameter values determined in a vehicle, comprising:
- recording, with decreasing density, at least one of (a) the parameter values and (b) data determined from the parameter values, with an increasing time interval from an instantaneous point in time at which the parameter values are determined.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for recording data from parameter values captured using sensors in a vehicle, particularly for the reconstruction of accidents, as well as a memory device and a device for recording such data, it being possible to record all relevant data continuously using low memory volume, and to save it permanently in a short period of time. For this purpose, the parameter values and/or data calculated from them are recorded at increasing time intervals for the instantaneous capturing point in time at decreasing density. A suitable storage device has a RAM (random access memory) for recording the data in each case over a certain time space and in a nonvolatile memory (such as EEPROM), to which the recorded data can be transmitted in parallel from the RAM within a few ms. An ASIC is suitable for its implementation.
-
Citations
13 Claims
-
1. A method for recording data from parameter values determined in a vehicle, comprising:
recording, with decreasing density, at least one of (a) the parameter values and (b) data determined from the parameter values, with an increasing time interval from an instantaneous point in time at which the parameter values are determined. - View Dependent Claims (2, 3, 4, 5)
-
6. A storage device for recording data from parameter values determined in a vehicle, comprising:
-
a first storage medium for recording data in each case over a predetermined time period; and
a second nonvolatile storage medium to which the recorded data from the first storage medium is transmitted in parallel, wherein a recording density is variable, dependent upon a point in time at which the parameter values are determined. - View Dependent Claims (7, 8, 9)
-
-
10. A vehicle control unit for recording data from parameter values determined by at least one sensor in a vehicle for reconstructing an accident, comprising:
-
an ASIC including an integrated storage device, the storage device including;
a first storage medium for recording data in each case over a predetermined time period; and
a second nonvolatile storage medium to which the recorded data from the first storage medium is transmitted in parallel, wherein a recording density is variable, dependent upon a point in time at which the parameter values are determined.
-
-
11. A device for recording data from parameter values determined in a vehicle, comprising:
at least one storage medium for recording, with decreasing density, at least one of (a) the parameter values and (b) data determined from the parameter values, with an increasing time interval from an instantaneous point in time at which the parameter values are determined. - View Dependent Claims (12)
-
13. A storage medium storing a computer program which when executed by a processor performs the following:
recording, with decreasing density, at least one of (a) parameter values determined in a vehicle and (b) data determined from the parameter values, with an increasing time interval from an instantaneous point in time at which the parameter values are determined.
Specification