TR
EN
Confidence aware wheelbase preview MPC with road estimation for half-car active suspension
Öz
The value of wheelbase preview in half-car active suspension depends on how reliably preview information can be reconstructed as road excitation changes. A confidence-aware wheelbase-preview model predictive control strategy is formulated for a four-degree-of-freedom half-car active suspension system subjected to random-road and impact-road inputs. The framework combines augmented state-road estimation with shift-register-based rear-preview generation. Preview usage is then adjusted online through an innovation-based confidence measure, while control increments are regularized within a constrained MPC formulation. Reconstruction quality differs clearly between the two simulated scenarios: road-estimation correlation falls from 0.9652 in the random-road case to 0.6935 in the impact-road case, and the mean confidence drops from 0.968 to 0.919. Preview is therefore useful, but its reliability is not stable enough for fixed use across operating conditions. In random-road simulations, rear acceleration root-mean-square (RMS) falls from 1.594 to 1.159 m/s², rear suspension deflection RMS from 7.82 to 5.93 mm, and rear relative dynamic load RMS from 0.235 to 0.203 relative to the passive baseline. For impact-road excitation, the controller provides the strongest improvements in rear-axle acceleration and dynamic-load response, attaining a rear acceleration RMS of 1.213 m/s², a rear acceleration P2P value of 13.269 m/s², and a rear relative dynamic load P2P value of 2.059 among the compared controllers. Changes at the front axle remain modest, whereas the clearest benefit appears at the rear, where preview is most directly relevant. Ablation results show that warm-up, confidence gating, and control-increment regularization improve different aspects of the response, leaving the full configuration as the most balanced overall trade-off rather than the best result in every metric. Mean solve times remain at 0.16 ms for the random-road case and 0.22 ms for the impact-road case, both below the selected 0.01 s sampling interval. Taken together, these results show that wheelbase preview is most effective when its contribution is adjusted according to estimation reliability rather than treated as uniformly trustworthy information.
Anahtar Kelimeler
Destekleyen Kurum
This research received no external funding.
Etik Beyan
Ethical approval was not required for this study because it did not involve human participants or animal subjects.
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Taşıt Tekniği ve Dinamiği
Bölüm
Araştırma Makalesi
Yazarlar
Yayımlanma Tarihi
22 Haziran 2026
Gönderilme Tarihi
3 Nisan 2026
Kabul Tarihi
5 Mayıs 2026
Yayımlandığı Sayı
Yıl 2026 Cilt: 15 Sayı: 2
APA
Sezgen, H. Ç. (2026). Confidence aware wheelbase preview MPC with road estimation for half-car active suspension. International Journal of Automotive Engineering and Technologies, 15(2), 77-90. https://doi.org/10.18245/ijaet.1922382
AMA
1.Sezgen HÇ. Confidence aware wheelbase preview MPC with road estimation for half-car active suspension. International Journal of Automotive Engineering and Technologies. 2026;15(2):77-90. doi:10.18245/ijaet.1922382
Chicago
Sezgen, Haşmet Çağrı. 2026. “Confidence aware wheelbase preview MPC with road estimation for half-car active suspension”. International Journal of Automotive Engineering and Technologies 15 (2): 77-90. https://doi.org/10.18245/ijaet.1922382.
EndNote
Sezgen HÇ (01 Haziran 2026) Confidence aware wheelbase preview MPC with road estimation for half-car active suspension. International Journal of Automotive Engineering and Technologies 15 2 77–90.
IEEE
[1]H. Ç. Sezgen, “Confidence aware wheelbase preview MPC with road estimation for half-car active suspension”, International Journal of Automotive Engineering and Technologies, c. 15, sy 2, ss. 77–90, Haz. 2026, doi: 10.18245/ijaet.1922382.
ISNAD
Sezgen, Haşmet Çağrı. “Confidence aware wheelbase preview MPC with road estimation for half-car active suspension”. International Journal of Automotive Engineering and Technologies 15/2 (01 Haziran 2026): 77-90. https://doi.org/10.18245/ijaet.1922382.
JAMA
1.Sezgen HÇ. Confidence aware wheelbase preview MPC with road estimation for half-car active suspension. International Journal of Automotive Engineering and Technologies. 2026;15:77–90.
MLA
Sezgen, Haşmet Çağrı. “Confidence aware wheelbase preview MPC with road estimation for half-car active suspension”. International Journal of Automotive Engineering and Technologies, c. 15, sy 2, Haziran 2026, ss. 77-90, doi:10.18245/ijaet.1922382.
Vancouver
1.Haşmet Çağrı Sezgen. Confidence aware wheelbase preview MPC with road estimation for half-car active suspension. International Journal of Automotive Engineering and Technologies. 01 Haziran 2026;15(2):77-90. doi:10.18245/ijaet.1922382