US 10,850,726 B2Granted

Vehicle behavior control device

AssigneeMazda Motor Corporation

InventorsToru Yoshioka, Daisuke Umetsu, Osamu Sunahara, Yasunori Takahara, Masaki Chiba

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Abstract

There is provided a vehicle behavior control device capable of improving responsivity of a vehicle behavior and a linear feeling with respect to a steering wheel operation without causing a driver to experience a strong feeling of intervention of the control and, at the same time, capable of controlling behavior of a vehicle in such a manner as to also improve stability of the vehicle attitude and riding comfort. In a vehicle behavior control device applied to a vehicle 1 having steerable front road wheels 2, the vehicle behavior control device includes a PCM 14 which acquires a steering speed of the vehicle, and increases a pitch angle in such a direction that a front portion of the vehicle dips when the steering speed becomes equal to or greater than a given threshold TS1 which is greater than zero.

Claims4

Dependent claims

A vehicle behavior control device applied to a vehicle having a steerable front road wheel and a driving device configured to drive a drive road wheel, the vehicle behavior control device comprising:

a steering speed acquiring part configured to acquire a steering speed of the vehicle;
and
a pitch angle increasing part configured to increase a pitch angle in such a direction that a front portion of the vehicle dips, when the steering speed becomes equal to or greater than a given threshold which is greater than zero,
wherein, when the steering speed becomes equal to or greater than the threshold, the pitch angle increasing part is configured to acquire a target additional deceleration to be added to the vehicle based on the steering speed, and to decide a reduction amount of the driving force which is required for realizing the target additional deceleration, and to reduce the driving force from the driving device based on the decided reduction amount so as to increase the pitch angle in such a direction that the front portion of the vehicle dips, and
wherein, as the steering speed increases, the target additional deceleration increases and comes closer to an upper limit value of 0.5 m/s2 but does not exceed the upper limit value.

2 more elements

Dependencies are inferred from the claim text.