How to calculate the max acceleration

AI Thread Summary
To calculate the maximum acceleration and power of a vehicle with a 305 cc engine, key specifications include torque of 18.53 N m at 2800 rpm, a car weight of 275 kg, and an engine-wheel efficiency of 78%. The maximum power output is determined to be 5433 W at 2800 rpm, but it's unclear if this is the peak power. Maximum acceleration calculations require additional information, such as the friction coefficient of the tires, which was not provided. For further insights, resources on estimating vehicle acceleration and engine performance can be beneficial.
Ketan Vadher
Messages
5
Reaction score
0
I have an engine with the following specifications:
305 cc, 4-stroke single-cylinder.
Torque : 18.53 N m @ 2800 rpm.
Weight of the car 275kg
Coefficient of drag:1.15
Frontal area: 0.9177m^2
Rolling resistance:0.04482
Engine wheel efficiency: 78%

How can i calculate the Max. acceleration and Max. Power ?
 
Engineering news on Phys.org
With difficulty.
Where is all this coming from? Does that source also tell you the power output of the engine for it's standard fuel mix?
What does "engine-wheel efficiency" mean?
 
The maximum acceleration will depends on the friction coefficient of the tires. Since you didn't specify it, you cannot find it.

For the maximum power all you know is that you have 5433 W @ 2800 rpm (= 18.53 * 2800 * π / 30). Is this the rpm where you have the maximum power? No one can say from the information you gave.

More info here about estimating the acceleration of a vehicle.
 
I calculated A Four-Cylinder Internal Combustion Engine last year. It includes heat analysis and speed characteristics. It can help.
 

Attachments

How did you find PF?: Via Google search Hi, I have a vessel I 3D printed to investigate single bubble rise. The vessel has a 4 mm gap separated by acrylic panels. This is essentially my viewing chamber where I can record the bubble motion. The vessel is open to atmosphere. The bubble generation mechanism is composed of a syringe pump and glass capillary tube (Internal Diameter of 0.45 mm). I connect a 1/4” air line hose from the syringe to the capillary The bubble is formed at the tip...
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'
Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
I'd like to create a thread with links to 3-D Printer resources, including printers and software package suggestions. My motivations are selfish, as I have a 3-D printed project that I'm working on, and I'd like to buy a simple printer and use low cost software to make the first prototype. There are some previous threads about 3-D printing like this: https://www.physicsforums.com/threads/are-3d-printers-easy-to-use-yet.917489/ but none that address the overall topic (unless I've missed...
Back
Top