(4) Vehicle could not move by own drive system when
it connected with external circuits (for example: grid,
external charger)
(5) Only through normal the power connected program
can it restarts. after drive system closed manually or
automatically
(6) Weather the working status of drive system in
preparation condition is lasting or intermittently both
should be displayed by a clear signal device (for example:
sound signal or light signal)
2) Requirements of driving safety
(1) Display safety requirements of power reduction
The state of power reduction considerably should be
displayed by a obvious device (e.g. because the high
temperature of drive system or parts of power source)
(2) Residual quantity of battery display
The state of the remanding quantity of battery is less
than a certain value should be displayed by a obvious
device (for example: sound signal or light signal) the
certain value is limited by vehicle manufactory but should
meet the following requirements:
a) It is enough to make vehicles itself out of the traffic
area by its own drive system;
b) It is enough to supply lighting system as the
requirements of related standard
3) Requirements of backing safety
In order to preventing switch from turn into the
unexpected position, it should meet the following
requirements, if backing is achieved by changing rotation
of motor:
a) Drivers should turn the switch into different position
by different actions
b) Drivers turn the switch into different position by the
same actions only while vehicle driving with low speed or
rest. The highest backing speed should be limited (limited
by manufacturers).
4) Requirements of parking safety
The driver should be prompted by a clear device (for
example: sound signal or light signal) when he or she
leaves if the driving system in "travels" condition
5) Requirements of main switch control
There should be a main switch to disconnection at least
one electrode of on-board power (for example: the power
battery). This switch should be controlled by a manual
device that driver could touch with hand.
B. Requirements of fault protection of electric vehicle
electric motor drive
Fault protection of danger from the specific systems
and parts that own EV. Other systems and parts should be
the same as internal combustion engine vehicles' to
avoiding potential danger as following:
(1) Unexpressive action of vehicle
The unexpressive acceleration, deceleration and
backing of driving system should be stop. It should be cut
off the connection with driving system that vehicle without
breaking force when parking to avoiding appear
unexpective movement of it ,if some fault happened.
(2) Electrical connection
The unexpressive disconnection of electrical
connection should not cause dangerous that threaten
vehicles' safety.
(3) Auxiliary loop