RobertC
1 W
Acceleration Chart for Common Vehicles.JPG[/attachment]I was playing with the motor simulator and was wondering what a usable acceleration rate is. What is "Slow", "Average", or "Quick"? Short answer, truck is about 1 m/sec2, motorcyle is 3-4 m/sec2, and cars are about 2 m/sec2.
Googled around a bit and found these:
http://www.academia.edu/7840630/Acceleration-Deceleration_Behaviour_of_Various_Vehicle_Types
http://www.subcompactculture.com/2014/10/chart-small-car-power-to-weight-ratios.html
Critical speed
The speed at which the maximum acceleration rate occurs (referred as critical speed) varies with
vehicle type. The critical speed range is 1.08 m/s to 2.77 m/s for truck, 1.53 m/s to 2.53 m/s
for motorized three-wheeler, 3.27 m/s to 4.21 m/s for motorized two- wheeler, 1.46 m/s to 1.21 m/s
for diesel car, 2.40 m/s to 3.74 m/s for petrol car. Trucks achieve maximum acceleration
quickly, whereas other vehicle types take more time to achieve their maximum acceleration rate.
Hence, more data points could be recorded before vehicles’ critical speed for other vehicle types
as compared to truck. Also it is observed that since trucks achieve highest acceleration quickly,
the proportion of time spend before achieving maximum acceleration is negligible as compared to
total acceleration time (only 2 sec out of 60 sec acceleration manoeuver for truck). Further, it is
observed that critical speed reduces (in most of the cases) with increase in driver desired speed.
This implies that driver accelerates quickly when he/she plans to drive with higher speed.
Maximum and mean acceleration rate
It can be observed from Table 2 that the maximum acceleration rate varies with vehicle type and
maximum speed of vehicle. The maximum and mean acceleration rates are higher at higher maximum
speed, in majority of cases, of all vehicle types.
Th emaximum acceleration rate observed for truck is 1.0 m/s2, for motorized three-wheeler 0.64 m/s2,
for motorized two-wheeler 1.95 m/s2, for diesel car 2.23 m/s2 and for petrol car 2.87 m/s2
(refer Table 2). This indicates that petrol car employs highest acceleration rate among all
vehicle types while motorized three-wheeler employs lowest maximum acceleration rate. Mean
acceleration rates of different vehicles also follow similar trends.
Maximum acceleration rates of different vehicles at various speed reported in literature are
presented in Table 3. It can be observed from Table 2 that maximum acceleration values of cars
observed in this study are higher than reported acceleration value by previous Indian researchers
(5, 11). However, it is comparable with some other international studies (8, 32). Previous Indian
studies used travel time method for speed measurement which may under estimate the speed (hence
acceleration) of vehicles. Similar observations holds true for acceleration values of truck. In
case of motorized two wheelers, observed acceleration value is little lower than reported values in
previous Indian studies. This underestimation of two wheeler’s acceleration may due to driver’s
cautiousness during data collection in the present study.
The bottom graph in the second image hows acceleration vs time(2)
I pasted the text for searchability. Hope it helps!
Googled around a bit and found these:
http://www.academia.edu/7840630/Acceleration-Deceleration_Behaviour_of_Various_Vehicle_Types
http://www.subcompactculture.com/2014/10/chart-small-car-power-to-weight-ratios.html
Critical speed
The speed at which the maximum acceleration rate occurs (referred as critical speed) varies with
vehicle type. The critical speed range is 1.08 m/s to 2.77 m/s for truck, 1.53 m/s to 2.53 m/s
for motorized three-wheeler, 3.27 m/s to 4.21 m/s for motorized two- wheeler, 1.46 m/s to 1.21 m/s
for diesel car, 2.40 m/s to 3.74 m/s for petrol car. Trucks achieve maximum acceleration
quickly, whereas other vehicle types take more time to achieve their maximum acceleration rate.
Hence, more data points could be recorded before vehicles’ critical speed for other vehicle types
as compared to truck. Also it is observed that since trucks achieve highest acceleration quickly,
the proportion of time spend before achieving maximum acceleration is negligible as compared to
total acceleration time (only 2 sec out of 60 sec acceleration manoeuver for truck). Further, it is
observed that critical speed reduces (in most of the cases) with increase in driver desired speed.
This implies that driver accelerates quickly when he/she plans to drive with higher speed.
Maximum and mean acceleration rate
It can be observed from Table 2 that the maximum acceleration rate varies with vehicle type and
maximum speed of vehicle. The maximum and mean acceleration rates are higher at higher maximum
speed, in majority of cases, of all vehicle types.
Th emaximum acceleration rate observed for truck is 1.0 m/s2, for motorized three-wheeler 0.64 m/s2,
for motorized two-wheeler 1.95 m/s2, for diesel car 2.23 m/s2 and for petrol car 2.87 m/s2
(refer Table 2). This indicates that petrol car employs highest acceleration rate among all
vehicle types while motorized three-wheeler employs lowest maximum acceleration rate. Mean
acceleration rates of different vehicles also follow similar trends.
Maximum acceleration rates of different vehicles at various speed reported in literature are
presented in Table 3. It can be observed from Table 2 that maximum acceleration values of cars
observed in this study are higher than reported acceleration value by previous Indian researchers
(5, 11). However, it is comparable with some other international studies (8, 32). Previous Indian
studies used travel time method for speed measurement which may under estimate the speed (hence
acceleration) of vehicles. Similar observations holds true for acceleration values of truck. In
case of motorized two wheelers, observed acceleration value is little lower than reported values in
previous Indian studies. This underestimation of two wheeler’s acceleration may due to driver’s
cautiousness during data collection in the present study.
The bottom graph in the second image hows acceleration vs time(2)
I pasted the text for searchability. Hope it helps!
