Abstract: A storage device, includes: a plurality of controller modules; a bus disposed among the plurality of controller modules, the bus including a plurality of transmission paths; a detector configured to detect an error in data communication through the bus; and a connection controller configured to carry out partial fallback processing of the bus if the number of the errors has exceeded a given number.

Abstract: A storage device, includes: a plurality of controller modules; a bus disposed among the plurality of controller modules, the bus including a plurality of transmission paths; a detector configured to detect an error in data communication through the bus; and a connection controller configured to carry out partial fallback processing of the bus if the number of the errors has exceeded a given number.

Abstract: A data communication control device. The data communication control device includes, a controller comprising a first data storing part, the first data storing part including multiple channels, each channel being applied to store a command for data transfer based on a destination of data, the controller executing the command stored in the channel from the head to transfer data and, an overall controller storing the command in the channel of the first data storing part when the number of commands in a certain channel is not over a upper limit, and stopping to store the command in the channel of the first data storing part and creating a second data storing part and storing the command in the second data storing part when the number of commands in a certain channel is over the upper limit.

Abstract: A first controller stores externally input data to a memory of the first controller, reads data stored in the memory of the first controller and transmits the data to a second controller through a first controller bridge, detects a failure at the first controller bridge in transmission of the data. The second controller receives the data through a second controller bridge, writes the received data into a memory of the second controller, and determines whether the failure is caused by the first controller if a failure occurs in the memory controller and the second controller bridge. If a failure is detected in the first controller and the second controller and the failure is caused by the first controller, the first controller transmits the data causing the failure during transmission through the first controller bridge and the second controller receives the data through the second controller bridge.

Abstract: A communication apparatus includes a control device having a conversion device which separates first and second domains being a formation unit of a network using serial connect bus, and which converts a first requester ID which discriminates a root device for generating a packet and which is included in the packet generated in the first domain into a unique second requester ID used in the second domain, and a root device which belongs to the first domain and sets the first requester ID in the conversion device; a switch connected to the second domain side of the conversion device included in the control device; and a root device which belongs to the second domain and sets the second requester ID in the conversion device via the switch.

Abstract: A multi-core processor which includes a plurality of processor dies. The multi-core processor has a first processor core which processes a first task and a second processor core which processes a second task. The first processor core and the second processor core are formed on each of the plurality of processor dies. When the first processor core makes a request for the second task processing in processing the first task, information on the second task is stored in a memory area used by the first processor core and interrupt notification is made to each of the second processor cores provided respectively on the plurality of processor dies. Each of the second processor cores having received the interrupt notification accesses the memory area used by the first processor core provided on the same processor die as the processor die on which the second processor core is provided.

Abstract: A first controller stores externally input data to a memory of the first controller, reads data stored in the memory of the first controller and transmits the data to a second controller through a first controller bridge, detects a failure at the first controller bridge in transmission of the data. The second controller receives the data through a second controller bridge, writes the received data into a memory of the second controller, and determines whether the failure is caused by the first controller if a failure occurs in the memory controller and the second controller bridge. If a failure is detected in the first controller and the second controller and the failure is caused by the first controller, the first controller transmits the data causing the failure during transmission through the first controller bridge and the second controller receives the data through the second controller bridge.

Abstract: A multi-core processor which includes a plurality of processor dies. The multi-core processor has a first processor core which processes a first task and a second processor core which processes a second task. The first processor core and the second processor core are formed on each of the plurality of processor dies. When the first processor core makes a request for the second task processing in processing the first task, information on the second task is stored in a memory area used by the first processor core and interrupt notification is made to each of the second processor cores provided respectively on the plurality of processor dies. Each of the second processor cores having received the interrupt notification accesses the memory area used by the first processor core provided on the same processor die as the processor die on which the second processor core is provided.

Abstract: A data communication control device. The data communication control device includes, a controller comprising a first data storing part, the first data storing part including multiple channels, each channel being applied to store a command for data transfer based on a destination of data, the controller executing the command stored in the channel from the head to transfer data and, an overall controller storing the command in the channel of the first data storing part when the number of commands in a certain channel is not over a upper limit, and stopping to store the command in the channel of the first data storing part and creating a second data storing part and storing the command in the second data storing part when the number of commands in a certain channel is over the upper limit.

Abstract: An engine overrun preventing system for a vehicle, in which the overrun of an engine is prevented when the overrun of the engine is detected, by (i) switching a lock-up system provided in a torque convertor OFF to cause a slip, if it is detected that the lock-up system is in its ON state; (ii) shifting a transmission into a speed range which is one grade lower than a presently selected speed range and reducing vehicle speed by engine brake, if it is detected that the lock-up system is in its OFF state and that the transmission is placed in another speed range than a first speed; and (iii) actuating a brake to reduce vehicle speed, if it is detected that the lock-up system is in its OFF state and that the transmission is placed in the first speed and if a detected vehicle speed is equal to a predetermined vehicle speed or more.

Abstract: A load control unit for a bulldozer, comprising an actual tractive force detector for detecting the actual tractive force of a vehicle body; target tractive force setting switch for setting a target tractive force for an automatic blade control mode in dozing operation; and blade controller for controlling a blade to be lifted or lowered such that if there is a difference between the actual tractive force detected by the actual tractive force detector and the target tractive force set by the target tractive force setting switch when digging is started with the automatic blade control mode in dozing operation, the actual tractive force gradually comes closer to the target tractive force.

Abstract: A blade control system for use in a bulldozer comprising: a driving mode setting device which can set an automatic blade control mode during dozing operation; a running condition detector for detecting whether a transmission is placed in forward range or reverse range; and a blade controller for controlling tilting and lowering of a blade such that when the speed range detector has detected that the transmission is placed in forward range and the driving mode setting device has set the automatic blade control mode to start digging, the lower end of the blade becomes horizontal in relation to a vehicle body and is brought into contact with the ground.

Abstract: A control unit for controlling load on a bulldozer in the case of manual intervention, comprising: an actual tractive force detector for detecting the actual tractive force of a vehicle body; a target tractive force setting device for setting a target tractive force for an automatic blade control mode in dozing operation according to the actual tractive force detected by the actual tractive force detector; and a blade controller for controlling a blade to be lifted or lowered such that, if there is a difference between the target tractive force set by the target tractive force setting device when switching from the automatic blade control mode to a manual operation mode takes place in dozing operation and the actual tractive force detected by the actual tractive force detector when return from the manual operation mode to the automatic blade control mode takes place, the actual tractive force gradually comes closer to the target tractive force set when switching to the manual operation mode takes place.

Abstract: A straight-ahead traveling control system for a bulldozer comprising: (a) a driving mode setting device which can set an automatic blade control mode for dozing operation; (b) a yaw angle detector for detecting the yaw angle of a vehicle body in relation to a target traveling direction for the vehicle body; (c) a blade tilt angle detector for detecting the tilt angle of the blade tilting laterally in relation to the ground; and (d) a blade controller for controlling tilting of the blade based on a first blade tilting amount used for driving the vehicle body straight ahead and a second blade tilting amount used for forming a laterally horizontal earth surface after digging by the blade, the first blade tilting amount being obtained from the yaw angle of the vehicle body detected by the yaw angle detector and the second blade tilting amount being obtained from the tilt angle of the blade detected by the blade tilt angle detector, when the driving mode setting device has set the automatic blade control mode.

Abstract: A dozing system for a bulldozer, comprising an actual tractive force detector for detecting an actual tractive force of a vehicle body; a target tractive force setting device for setting a target tractive force for a vehicle body; a tractive force deviation calculator for calculating the deviation between the actual tractive force detected by the actual tractive force detector and the target tractive force set by the target tractive force setting device; and a comparison control unit for controlling a blade to be lifted or lowered such that the absolute value of the deviation is increased, when at least the absolute value of the deviation is less than a preset value and tile actual tractive force is approaching the target tractive force.

Abstract: An automatic drive control system for a bulldozer comprising a digging start detector for detecting that the bulldozer is in a digging start position, a digging end detector for detecting that the bulldozer is in a digging end position, a driving direction detector for detecting the momentarily varying driving direction of the bulldozer, and a drive controller for shifting a transmission into a forward gear when the digging start detector detects that the bulldozer is presently in the digging start position; shifting the transmission into a reverse gear when the digging end detector detects that the bulldozer is presently in the digging end position; and controlling the bulldozer such that the driving direction detected by the driving direction detector is made coincident with a target driving direction when the bulldozer is moving from the digging start position towards the digging end position.