Chapter 6 : Vehicle
Dynamice
4 .
2)
Trique Generstore
vehicle wheel
↳
accelerated ->
by tractive force of wheeh ->
depends on
applied torque
~
diff .
Power sourcer (ICE, ,
electric m .
) +
torque generation !
& Internal Combustio
engine/ICE
Te =
/We & ,
thottle
↳ opening full load
speed of rotation
- ,
wide open
TFLI W ) Hrottle
migic Torque famula Ts0 w) =
:
,
3P
(1 +
exp(A -
BO)]
~
engines
or terms
of their
full load and Part-load torque .
Chas
~ Diesel
engines larger Trique ,
but lowes w
* Electric moters
DL -
good speed Control ,
relative simple BUT brusher need
to be
changed
maintenace
=
high ?
AL less expensive but much more
Comples
>
use
-
>
-
higher Power
density and
higher officiency - As motis most used ?
of the inherent properties of electric
= one motor -
Torque productio & O
speed
↳ clutch ?
⑦ because rest -- without
~
high T at low speed
~ mas P
afterwards
, 4 .
3) Tractive forces
↳ tractive
tyres produce -
forces o
particular road
surface
:
*
Tyre fac generation
?
tyre segment first
~ Consider a
When Face F 3
possible
applied
is -> cases
al F moll ->
no rel motion
F =
Ff
b
large enough
F to the
to
bring the
segment verge of slip
# NsN Ns
= =
Statis
friction lärf .
、
Ff NRN
ABW
= =
dynomic firs face
.
(NR 2
Ns)
in Proctice FIENSN
-
> Oz
Now Consider
* a
tyra
W ad load
doer not
-or
long as
tyre rotate -
friction force similar to
that of the segment?
>
- Now instead of a
force -
>
Torque
T
applied
↳ direction of the
frictio face is reversed .
I majn = between simple slip without
rolling is the
slip phenomenon
this
as even is
difficult to work with ?
Vw =
Vs + W X zw / =
velocity whell
↳
effective whol radius
Co
if nw
stp -
, Va :
wrrw
Dynamice
4 .
2)
Trique Generstore
vehicle wheel
↳
accelerated ->
by tractive force of wheeh ->
depends on
applied torque
~
diff .
Power sourcer (ICE, ,
electric m .
) +
torque generation !
& Internal Combustio
engine/ICE
Te =
/We & ,
thottle
↳ opening full load
speed of rotation
- ,
wide open
TFLI W ) Hrottle
migic Torque famula Ts0 w) =
:
,
3P
(1 +
exp(A -
BO)]
~
engines
or terms
of their
full load and Part-load torque .
Chas
~ Diesel
engines larger Trique ,
but lowes w
* Electric moters
DL -
good speed Control ,
relative simple BUT brusher need
to be
changed
maintenace
=
high ?
AL less expensive but much more
Comples
>
use
-
>
-
higher Power
density and
higher officiency - As motis most used ?
of the inherent properties of electric
= one motor -
Torque productio & O
speed
↳ clutch ?
⑦ because rest -- without
~
high T at low speed
~ mas P
afterwards
, 4 .
3) Tractive forces
↳ tractive
tyres produce -
forces o
particular road
surface
:
*
Tyre fac generation
?
tyre segment first
~ Consider a
When Face F 3
possible
applied
is -> cases
al F moll ->
no rel motion
F =
Ff
b
large enough
F to the
to
bring the
segment verge of slip
# NsN Ns
= =
Statis
friction lärf .
、
Ff NRN
ABW
= =
dynomic firs face
.
(NR 2
Ns)
in Proctice FIENSN
-
> Oz
Now Consider
* a
tyra
W ad load
doer not
-or
long as
tyre rotate -
friction force similar to
that of the segment?
>
- Now instead of a
force -
>
Torque
T
applied
↳ direction of the
frictio face is reversed .
I majn = between simple slip without
rolling is the
slip phenomenon
this
as even is
difficult to work with ?
Vw =
Vs + W X zw / =
velocity whell
↳
effective whol radius
Co
if nw
stp -
, Va :
wrrw
