Evaluating the Effectiveness of “Smart Pedal” Systems for Vehicle Fleets

Scora, George; Barth, Matthew; Vu, Alexander; Oswald, David · 2023 · ROSA P / National Center for Sustainable Transportation (NCST) (UTC)

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Summary

This research evaluates the effectiveness of “Smart Pedal” systems, specifically the SmartPedal™ throttle controller, for improving fuel economy and reducing greenhouse gas (GHG) emissions in vehicle fleets. Motivated by California’s aggressive GHG reduction targets, the study addresses the potential of third-party hardware to smooth driver acceleration patterns without compromising travel time or safety. The SmartPedal™ device was selected for evaluation because it uses motion sensors to identify and correct micro-accelerations caused by roadway artifacts, rather than simply dampening the entire throttle response curve like traditional controllers. The methodology involved a field test on six vehicles from the California Department of Transportation (Caltrans) fleet, including Ford F-150s, F-250s, F-350s, and Dodge Ram 1500s and 2500s. Each vehicle was instrumented with GPS-enabled Engine Control Unit (ECU) data loggers to collect high-frequency data on fuel rate, speed, and location. The study employed a before-and-after design, collecting baseline data during a period without the device followed by a period with the SmartPedal™ installed. Data collection periods ranged from 34 to 77 days, covering distances between 548 and 2,800 miles per vehicle under real-world operating conditions. The results indicated an average fuel economy increase of up to 6.29% for the vehicle showing the highest improvement. However, the findings were mixed; two of the six vehicles experienced small fuel economy decreases of -0.52% and -1.72%. The authors attribute this variability to significant uncontrolled parameters inherent in real-world testing, such as changes in payload, passenger count, driver behavior, and accessory usage. Despite these limitations, the observed savings align with larger case studies involving hundreds of thousands of miles, which reported fuel economy gains ranging from 1.5% to 16.8%. A cost-benefit analysis for the best-performing vehicle estimated a payback period of approximately 15.76 months based on the device’s $299 cost. The study concludes that while SmartPedal™ technology shows promise for fleet fuel savings, the current results are constrained by the inability to isolate the device’s effect from other operational variables. The authors recommend future research utilizing either significantly larger sample sizes under real-world conditions or controlled trials where routes, drivers, and payloads are kept constant to validate the technology’s effectiveness more rigorously.

Key finding

Installation of the SmartPedal throttle controller resulted in an average fuel economy increase of 6.29% across the tested fleet, with a payback period of approximately 15.76 months.

Methodology

field_study

Sample size: 6

Provenance

The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).

Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

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• eco driving