Real time suspension control with digital all-pass, high-pass fi

Details Real time suspension control with digital all-pass, high-pass fi Real time suspension control with digital all-pass, high-pass fi

1991-05-06

1993-08-10

Teska, Kevin J.

Boots, shoes, and leggings

280707, 36442405, G06F 1520, B60G 2300

Patent

active

052355292

ABSTRACT:
In a vehicle suspension control in which the output of a vehicle body mounted absolute vertical acceleration sensor is integrated to provide an absolute vertical velocity signal, the sensor output is high pass filtered to remove DC components but pass components in the frequency range 1-2 Hz. The filter comprises a second order digital all-pass filter embodied recursively on a 16 bit, fixed point, digital signal processor (DSP). A first stage normalized lattice two-pair network reduces to a unity gain stage; and a second stage single multiplier two-pair lattice network minimizes computational time. The 32 bit internal accumulators of the 16 bit DSP are used advantageously to prevent errors due to internal overflow of the recursive variable.

REFERENCES:
patent: 3807678 (1974-04-01), Karnopp et al.
patent: 4242732 (1980-12-01), Campbell
patent: 4696489 (1987-09-01), Fujishiro et al.
patent: 4838574 (1989-06-01), Baraszu
patent: 5062657 (1991-11-01), Majeed
patent: 5073860 (1991-12-01), Blackburn et al.
patent: 5101355 (1992-03-01), Wada et al.
"Dual Processor Automotive Controller"; Kamal N. Majeed; IEEE/Applications of Automotive Electronics; Oct. 19, 1988.
Regalia et al., "The Digital All-Pass Filter: A Versatile Signal Processing Building Block", Proceedings of the IEEE, vol. 76, No. 1, Jan. 1988.

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