BPRP from WO 37o 50o at the of – pedal initiation of contact and 20o 30o (required) 20o 30o (required) – – actuation 30o extend downward to an Yes 25o (recommended) 25o (recommended) angle angle of 10o 18o at full – throttle Force to activate the brake pedal control shall be an essentially linear function of the bus deceleration rate and shall not exceed 311 N (75 lbs) at a point 178 mm Force at maximum Brake pedal above the heel point of the braking: 66.8 Force at maximum braking: – actuation pedal to achieve maximum < 550 N (required) Yes 155.8 N 250 N (recommended) ≤ force braking. The heel point is 450 N ≤ the location of the bus (recommended) operator’s heel when his or her foot is rested flat on the pedal and the heel is touching the floor or heel pad of the pedal. Brake pedal recovery 22.2 N N/A N/A N/A Omitted force Accelerator Accelerator 254 305 mm – Pedal plate 140 mm N/A N/A Yes length Accelerator 76 102 mm – pedal plate 56 mm Min. 50 mm (required) 40 mm (required) Yes ≥ width
BPRP from WO pedal actuation angle 30o 37o – 50o at the of initiation of contact and extend downward to an angle of 10o – 18o at full throttle 20o – 30o (required) 25o (recommended) 20o – 30o (required) 25o (recommended) Yes Brake pedal actuation force 66.8 – 155.8 N Force to activate the brake pedal control shall be an essentially linear function of the bus deceleration rate and shall not exceed 311 N (75 lbs) at a point 178 mm above the heel point of the pedal to achieve maximum braking. The heel point is the location of the bus operator’s heel when his or her foot is rested flat on the pedal and the heel is touching the floor or heel pad of the pedal. Force at maximum braking: < 550 N (required) ≤ 450 N (recommended) Force at maximum braking: ≤ 250 N (recommended) Yes Brake pedal recovery force 22.2 N N/A N/A N/A Omitted Accelerator Pedal Accelerator plate length 140 mm 254 – 305 mm N/A N/A Yes Accelerator pedal plate width 56 mm 76 – 102 mm Min. 50 mm (required) ≥ 40 mm (required) Yes
tcrp_rpt_185_DesignTool1.docx