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US 8,676,446 B2Granted
Control unit for passenger protection and method for triggering passenger protection means
AssigneeRobert Bosch GmbH
InventorTimo Weiss
Life of this patent
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Abstract
In a control unit for passenger protection and a method for triggering passenger protection devices, a Manchester-coded signal is supplied by an interface and the Manchester-coded signal is decoded by a coding unit, so that an analyzer unit performs the triggering of passenger protection devices as a function of the decoded signal. The decoding unit uses a shift register structure for decoding and oversampling for the Manchester-coded signal.
Claims24
A control unit for passenger protection, comprising:
- an interface adapted to a Manchester-coded signal;
- a decoding unit adapted to decode the Manchester-coded signal;
- and
- an analyzer unit adapted to trigger passenger protection devices based on the decoded signal;
- wherein the decoding unit includes a shift register structure adapted to decode, and oversampling is provided for the Manchester-coded signal,
- wherein there is an adding device adapted to form a sum of at least part of the contents of the shift register structure, a value-forming unit adapted to form a value from the sum, and
- wherein an extreme value search device is connected to the shift register structure, and
- the value-forming unit forms a value when an extreme value is found.
5 more elements
A control unit for passenger protection, comprising:
- an interface adapted to a Manchester-coded signal;
- a decoding unit adapted to decode the Manchester-coded signal;
- and
- an analyzer unit adapted to trigger passenger protection devices based on the decoded signal;
- wherein the decoding unit includes a shift register structure adapted to decode, and oversampling is provided for the Manchester-coded signal,
- wherein the shift register structure has two series-connected shift registers of equal length,
- wherein there is an adding device adapted to sum the contents of the two shift registers for the two shift registers, a subtraction device for the two sums to form a difference, and wherein there is a value-forming unit for the difference, a threshold-value decider for the value, a sign detector for the difference, a first output for the threshold-value decider for error detection, and a second output for the sign detector for output of the decoded signal,
- wherein an extreme value search is connected to the shift register structure, the extreme value search having an influence on the decoding, and
- wherein the extreme value search is connected to the first and second outputs such that the first and second outputs cause an output when an extreme value has been found.
6 more elements
A control unit for passenger protection, comprising:
- an interface adapted to a Manchester-coded signal;
- a decoding unit adapted to decode the Manchester-coded signal;
- and
- an analyzer unit adapted to trigger passenger protection devices based on the decoded signal;
- wherein the decoding unit includes a shift register structure adapted to decode, and oversampling is provided for the Manchester-coded signal,
- wherein the shift register structure has two series-connected shift registers of equal length,
- wherein there is an adding device adapted to sum the contents of the two shift registers for the two shift registers, a subtraction device for the two sums to form a difference, and wherein there is a value-forming unit for the difference, a threshold-value decider for the value, a sign detector for the difference, a first output for the threshold-value decider for error detection, and a second output for the sign detector for output of the decoded signal,
- wherein an extreme value search is connected to the shift register structure, the extreme value search having an influence on the decoding, and
- wherein the extreme value search is adapted so that the extreme value is determined as a function of a new sampled value and of oldest sampled values of the first and second shift registers.
6 more elements
A method for triggering a passenger protection device, comprising:
- supplying a Manchester-coded signal;
- decoding the Manchester-coded signal, wherein a shift register structure and oversampling of the signal are used for decoding;
- and
- triggering the passenger protection device in accordance with the decoded signal;
- forming, using an adding device, a sum of at least part of the contents of the shift register structure;
- and
- forming, using a value-forming unit, a value from the sum;
- wherein an extreme value search device is connected to the shift register structure, and
- the value-forming unit forms a value when an extreme value is found.
6 more elements
A method for triggering a passenger protection device, comprising:
- supplying a Manchester-coded signal;
- decoding the Manchester-coded signal;
- and
- triggering the passenger protection devices in accordance with the decoded signal;
- wherein a shift register structure and oversampling of the signal are used for decoding,
- wherein the shift register structure has two series-connected shift registers of equal length,
- wherein an adding device adapted to sum the contents of the two shift registers is provided for the two shift registers, a subtraction device is provided for the two sums to form a difference, and wherein a value-forming unit is provided for the difference, a threshold-value decider is provided for the value, a sign detector is provided for the difference and a first output is provided for the threshold-value decider for error detection, and a second output for the sign detector is provided for output of the decoded signal,
- wherein an extreme value search is connected to the shift register structure, the extreme value search having an influence on the decoding, and
- wherein the extreme value search is connected to the first and second outputs such that the first and second outputs cause an output when an extreme value has been found.
6 more elements
A method for triggering a passenger protection device, comprising:
- supplying a Manchester-coded signal;
- decoding the Manchester-coded signal;
- and
- triggering the passenger protection devices in accordance with the decoded signal;
- wherein a shift register structure and oversampling of the signal are used for decoding,
- wherein the shift register structure has two series-connected shift registers of equal length,
- wherein an adding device adapted to sum the contents of the two shift registers is provided for the two shift registers, a subtraction device is provided for the two sums to form a difference, and wherein a value-forming unit is provided for the difference, a threshold-value decider is provided for the value, a sign detector is provided for the difference and a first output is provided for the threshold-value decider for error detection, and a second output for the sign detector is provided for output of the decoded signal,
- wherein an extreme value search is connected to the shift register structure, the extreme value search having an influence on the decoding, and
- wherein the extreme value search is adapted so that the extreme value is determined as a function of a new sampled value and of oldest sampled values of the first and second shift registers.
6 more elements
Dependencies are inferred from the claim text.