Yazaki Corporation

Isuzu Motors Limited

Yoji Nakazaki

Naoya Takahashi

Hideyuki Aoshima

Yoshitaka Yasuda

Yutaka Atagi

Kenichi Kawaguchi

Masayuki Terada

Shinichiro Shimizu

Kouhei Hasimoto

An amount of distortion of an axle ( ) caused by a load that is applied on a vehicle and transmitted to the axle ( ) through a transmission member ( ) is measured and then a value of the load based on the measured amount of the distortion is measured. A load concentration unit ( ) is provided between the transmission member ( ) and the axle ( ) and receives the load concentrically.

Vehicle load measuring apparatus

A sensing element mounting structure which can facilitate the mounting of a sensing element into a trunnion shaft. In the sensing element mounting structure, in order that a sensing element for measuring the load of a vehicle can be mounted into the interior portion of a trunnion shaft mounted on a trunnion bracket of the vehicle and extending along the width direction of the vehicle, an insertion hole for storing therein a sensor main body of the sensing element is opened up in such a manner that it extends from one end of the trunnion shaft, which, when the trunnion shaft is mounted on the trunnion bracket, is situated on the outside of the vehicle in the vehicle width direction, toward the other end of the trunnion shaft, so that the insertion and removal of the sensor main body with respect to the interior portion of the insertion hole can be carried out from one end side situated on the outside in the vehicle width direction. At the same time, a through hole is formed in such a manner that it extends through between the insertion hole and the other end of the trunnion shaft, so that a lead wire of the sensing element can be guided through the through hole from the insertion hole and can be pulled out externally of the other end of the trunnion shaft.

Structure for mounting a sensing element for measuring the load of a

A deadweight calculating apparatus including a deadweight calculating section for calculating deadweight of a vehicle provided with a start assisting unit for urging and pressing drive wheels to a road surface in response to signals output from sensors arranged to measure loads and attached to the vehicle. The apparatus further includes an assisting operation detection section for detecting whether or not the drive wheels are being urged and pressed to the road surface by the start assisting unit, and a calculation interrupting section for causing the deadweight calculating section to interrupt a calculation of the deadweight of the vehicle during a period in which the assisting operation detection section detects a fact that the drive wheels are being urged and pressed to the road surface by the start assisting unit.

Deadweight calculating apparatus and medium having program recorded

In accordance with an output signal from a weight sensor mounted on a vehicle, a display control section causes a display unit to display weights calculated at predetermined intervals by a weight calculating section. The display control section adds, to the weight which is being displayed, the difference in the weights sequentially calculated by the weight calculating section from detection of start of a loading/unloading operation performed by a detection section to start of running of the vehicle and causes the display unit to display the obtained weight. When a release detection section has detected release of the brake within a predetermined time from the stoppage of the vehicle, detection of start of a loading/unloading operation is inhibited for a predetermined time from detection of the release. If release of the brake is not detected within a predetermined time from the moment at which the vehicle has been brought to the stoppage state, detection of start of a loading/unloading operation is enabled after a predetermined time elapses from the stoppage of the vehicle.

Dead weight display apparatus

In accordance with an output signal from a weight sensor mounted on a vehicle, a display control section causes a display unit to display weight calculated at predetermined intervals by a weight calculating section. The display control section adds, to the weight which is being displayed, the difference in the weights sequentially calculated by the weight calculating section from detection of start of a loading/unloading operation performed by a detection section to start of running of the vehicle and causes the display unit to display the obtained weight. A power supply control section for controlling a power supply circuit for supplying operating electric power for the sensor, the display unit, the display control section and the detection section controls to interrupt supply of operating electric power from the power supply circuit when an ignition switch is switched off. Whenever a predetermined time is measured by a time measuring section, the power supply circuit is caused to supply operating electric power to at least the sensor, the display control section and the detection section.

A vehicle-load-weight display system includes a weight calculating means 1 which obtains the load weight from output signals from sensors mounted in a vehicle, a display means 2 displaying the load weight obtained by the calculating means 1, and a display control means 3 controlling the display means 2 during a run so as to display the load weight obtained prior to the run. The weight calculating means 1 obtains the load weight from output signals provided by the weight sensors in the initial part of each period at constant intervals, and the display control means 3 decides whether the vehicle is running by a pulse outputted from a run sensor during each of multiple periods. A detecting means 4 detecting the start of loading and unloading works when a given time has passed after the vehicle stopped running. During the period from the detection of the start of loading and unloading works to the start of the vehicle running, the weight calculating means 1 calculates the difference in the load weights between the present period and the previous period, and moreover the display control means 3 makes the display means 2 display the present weight obtained by adding the difference in the load weights to the previously displayed weight.

Vehicle-load-weight display system

A vehicle load measuring device includes a sensing element for detecting a strain to measure the load of a vehicle, in which the sensing element is formed in a pin shape, and a device for supporting a suspension of the vehicle, in which a hole is formed in the supporting device and the sensing element is fitted into the hole, wherein the load of the vehicle is measured based on the strain detected by the sensing element produced in response to the load supported by the supporting device, and a positioning groove being formed on a surface of the device for supporting a suspension, wherein when the device for supporting a suspension connects a suspension with a bracket on the vehicle the device for supporting a suspension is positioned by use of the positioning groove, thereby determining the direction of the load to be applied to the sensing element and preventing the device for supporting a suspension from moving in a predetermined direction with respect to the bracket. The supporting device can be a trunnion shaft or a shackle pin. Also, the sensing element includes a magnetic strain sensing element formed from a magnetic material in a plate-like shape having a plurality of holes and having a coil wound in an intersecting manner through the plurality of holes.

Load measuring device for a vehicle

A vehicle load measuring device comprises a slide plate mounted on the upper surface of an axle case, a load of the vehicle applied through a leaf spring onto the slide plate, the slide plate including a setting portion at an inner surface; and a sensing member fitted into and fixed to the setting portion.

A sensing element in a load measuring device includes two cylindrical holders, each having a hole along the central axis; and a plate-shaped member provided between the two cylindrical holders, the plate-shaped member having protrusions at both ends, a coil being provided on a center portion of the plate-shaped member, wherein the cylindrical holders is welded to the plate-shaped member with the protrusions engaged with the holes in the two cylindrical holders.

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Shizuoka, Japan

Yoji Nakazaki