1. Anti-rolling device (1) for a vehicle (100) of the type equipped with a front steer system with articulated quadrilateral structure (41 42, 37, 36) and with two independent front suspensions (34, 35) characterised in that it comprises at least one stop element (2), integral with an element of said quadrilateral structure in its rolling movements, at least one locking element (3), to lock the position of said at least one stop element (2), preventing the rolling movements of said quadrilateral structure (41 42, 37, 36), and a parking group (4), guided by command means (20), to command said locking element (3).
2. Anti-rolling device (1) according to claim 1, characterised in that said parking group (4) also acts upon at least one stroke stop device (14, 14\u2032) of said front suspensions (34, 35).
3. Anti-rolling device (1) according to claim 2, characterised in that said parking group (4) also acts upon a brake-shoe (10) of the rear brake of the vehicle.
4. Anti-rolling device (1) according to claim 2, characterised in that said parking group (4) comprises a parking actuator (5) acting upon a worm screw (19) to activate a pump (12) connected to a hydraulic system (13) suitable for commanding said locking element (3) and said stroke stop element (14).
5. Anti-rolling device (1) according to claim 1, characterised in that said locking element (3) comprises a calliper element (23), firmly attached to the frame of said vehicle (100), commanded to closeopen on said stop element (2) by said parking group (4).
6. Anti-rolling device (1) according to claim 5, characterised in that said parking actuator (5) acts, through said worm screw (19), upon a lever element (16) to command to closing of said brake-shoe (10).
7. Anti-rolling device (1) according to claim 2, characterised in that it comprises a release command to actuate said brake-shoe (10) of said rear brake separately and independently from said locking element (3).
8. Anti-rolling device (1) according to claim 2, characterised in that said actuator (5) is a mechanical actuator.
9. Anti-rolling device (1) according to claim 2, characterised in that said actuator (5) is an electromechanical actuator.
10. Anti-rolling device (1) according to claim 8, characterised in that said command means (20) comprise a lever or a button, arranged on the handlebars of the vehicle (100), for the actuation of said actuator (5).
11. Anti-rolling device (1) according to claim 8, characterised in that said command means (20) comprise a pedal lever for the actuation of said actuator (5).
12. Anti-rolling device (1) according to claim 9, characterised in that said command means (20) comprise a safety device for limiting the maximum rotation speed of the motor with locking element (3) closed.
13. Anti-rolling device (1) according to claim 10, characterised in that said command means (20) comprise a safety device for limiting the maximum rotation speed of the motor with locking element (3) closed.
14. Anti-rolling device (1) according to claim 11, characterised in that said command means (20) comprise a safety device for limiting the maximum rotation speed of the motor with locking element (3) closed.
15. Anti-rolling device (1) according to claim 9, characterised in that said command means (20) comprise an electronic control unit suitable for automatically commanding said actuator (5) according to travel parameters of the vehicle (100).
16. Anti-rolling device (1) according to claim 15, characterised in that said actuator (5) is actuated by said electronic control unit according to the rolling angle and the travel speed of the vehicle.
17. Anti-rolling device (1) according to claim 9, characterised in that said command means (20) comprise at least one sensor for detecting anomalies in the system and an optical indicator connected to said anomaly sensor to visually indicate said anomalies to the driver.
18. Anti-rolling device (1) according to claim 15, characterised in that said command means (20) comprise a button for actuating said actuator (5) and the locking element (3) at the driver’s discretion.
19. Anti-rolling device (1) according to claim 16, characterised in that said command means (20) comprise a button for actuating said actuator (5) and the locking element (3) at the driver’s discretion.
20. Anti-rolling device (1) according to claim 17, characterised in that said command means (20) comprise a button for actuating said actuator (5) and the locking element (3) at the driver’s discretion.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A timing control method for operating a synchronous memory, wherein the synchronous memory has a local data bus, a signal amplification bus, and a global data bus, the timing control method comprising the steps of:
providing a synchronous timing such that following operations are carried out in a (n+1)th clock cycle of the synchronous timing;
reading and decoding the (a+1)th address;
pre-charging the local data bus that stores the ath bath of local data into an initial value in a local data bus pre-charging period;
amplifying and transferring the ath batch of global data from the signal amplification bus to the global data bus in a global data transmission period;
transferring the (a+1)th batch of local data to the local data bus in a non-local data bus pre-charging period;
pre-charging the signal amplification bus and the global data bus that stores the ath batch of global data into an initial value in a signal amplification bus pre-charging period after temporarily storing the ath batch of global data to a register; and
transferring the (a+1)th batch of local data from the local data bus to the signal amplification bus.
2. The method of claim 1, wherein the following operations are carried out in the nth clock cycle of the synchronous timing:
reading out an address value;
decoding the address value; and
retrieving local bus data from a location corresponding to the address provided by the decoding operation.
3. The method of claim 2, wherein the ath batch of local data is put on the local data bus in the non-local data bus pre-charging period after the address value is decoded, a column select is within the address value decoding termination cycle and other signals corresponding to the column select is within the address value decoding termination cycle.
4. The method of claim 1, wherein after the transfer of the ath batch of global data from the signal amplification bus to the global data bus, further includes storing the ath batch of global data in a register within the synchronous memory.
5. The method of claim 4, wherein after the transfer of the ath batch of global data into the register, further includes outputting the ath batch of global data from the register in the (n+2)th cycle of the synchronous timing.
6. The method of claim 1, wherein the step of putting the (a+1)th batch of local data on the local data bus requires a signal developing time for transforming the (a+1)th batch of local data into the (a+1)th batch of local data pair.
7. The method of claim 6, wherein length of the signal developing time is the period between the transition of the local data bus pre-charging period into the non-local data bus pre-charging period and the transition from the non-global data transmission period into the global data transmission period.