Mixed parallel and daisy chain bus architecture in a vehicle safety system
First Claim
1. A distributed vehicle safety system comprising:
- a plurality of devices, each for performing a function associated with protection of a vehicle occupant; and
bus means for conveying communication for said devices, said bus means including first and second conductors;
a first portion of said devices being daisy-chain connected, with respect to each other, along one of said conductors of said bus means;
a second portion of said devices being connected in parallel, with respect to each other, across said first and second conductors of said bus means.
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Accused Products
Abstract
A distributed vehicle safety system (10) and an associated method provide for connection of a plurality of devices (14). Each of the devices (14) performs a function associated with protection of a vehicle occupant. A communication bus (16) conveys communication for the devices (14). The bus includes first and second conductors (18A and 18B). A first portion (subset K) of the devices (14) are daisy-chain connected, with respect to each other, along one (e.g., 18A) of the conductors of the bus (16). A second portion (subset L) of the devices (14) are connected in parallel across the first and second conductors (18A and 18B) of the bus (16). The second portion (subset L) contains at least one and preferably several devices (14).
49 Citations
18 Claims
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1. A distributed vehicle safety system comprising:
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a plurality of devices, each for performing a function associated with protection of a vehicle occupant; and
bus means for conveying communication for said devices, said bus means including first and second conductors;
a first portion of said devices being daisy-chain connected, with respect to each other, along one of said conductors of said bus means;
a second portion of said devices being connected in parallel, with respect to each other, across said first and second conductors of said bus means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A distributed vehicle safety system comprising:
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a plurality of devices, each for performing a function associated with protection of a vehicle occupant; and
bus means for conveying communication for said devices, said bus means including first and second conductors;
a portion of said devices being daisy chain connected, with respect to each other, along one of said conductors of said bus means;
one of said devices being connected in parallel across said first and second conductors of said bus means. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of providing a distributed vehicle safety system comprising:
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providing a communication bus having first and second conductors;
connecting a first plurality of devices, which are capable of performing a function associated with protection of a vehicle occupant, in daisy-chain topology along one of the conductors of the bus; and
connecting a second plurality of devices, which are capable of performing said function associated with protection of a vehicle occupant, in parallel topology between the first and second conductors of the bus. - View Dependent Claims (17, 18)
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Specification