GB658290A - Improvements relating to brakes for electrically propelled vehicles - Google Patents
Improvements relating to brakes for electrically propelled vehiclesInfo
- Publication number
- GB658290A GB658290A GB2229348A GB2229348A GB658290A GB 658290 A GB658290 A GB 658290A GB 2229348 A GB2229348 A GB 2229348A GB 2229348 A GB2229348 A GB 2229348A GB 658290 A GB658290 A GB 658290A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- vehicle
- brakes
- energized
- solenoid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
658,290. Controlling electrically-propelled vehicles. SMITHS ELECTRIC VEHICLES, Ltd., and HEYMAN, H. W. Aug. 24, 1948, No. 22293. [Class 79 (v)] In a hydraulic braking system of an electrically propelled vehicle an electrically operated hydraulic valve is provided and the valve is interlocked with the motor control mechanism so that either the motor cannot be started whilst the valve is energized or the valve is de-energized on the motor being started, the valve being energized at will by the driver as an additional safety device to lock the vehicle brakes when required and the valve is of the kind actuated by a solenoid to prevent liquid flow and spring loaded when the solenoid is not actuated to permit liquid flow. As shown the invention is applied to an electrically propelled vehicle in which the wheels f, g are controlled by hydraulically operated brakes from a pedal e through a master cylinder c and a pipe b, the rear wheels g being also controlled by mechanically operated brakes through cables j from a hand lever h. Included in the pipe b is the electrically operated hydraulic valve a, the actuating solenoid a<SP>1</SP> of which is connected through a circuit m to a battery k<SP>1</SP> carried by the vehicle, the battery also supplying power to circuits p of the vehicle lights and auxiliaries. The motors of the vehicle are supplied with power through a circuit r from another vehicle-carried battery k. The circuits r, m are controlled by a switch s having a pair of coupled contacts t, t<SP>1</SP> and operated by the brake pedal e or by the driver by hand or foot so that the circuits r, m are not completed simultaneously, the vehicle being able to run free without either circuit being made. Energization of the solenoid a<SP>1</SP> locks the brakes in their " on position and may operate a warning light u. In a modification the current for the valve circuit is supplied through the motor control mechanism so that the valve can only be energized when the motor controller is in its " off position, depression of the pedal applying the brakes and energizing the valve and the valve being de-energized when the motor controller is moved to an "on" position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2229348A GB658290A (en) | 1948-08-24 | 1948-08-24 | Improvements relating to brakes for electrically propelled vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2229348A GB658290A (en) | 1948-08-24 | 1948-08-24 | Improvements relating to brakes for electrically propelled vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB658290A true GB658290A (en) | 1951-10-03 |
Family
ID=10177032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2229348A Expired GB658290A (en) | 1948-08-24 | 1948-08-24 | Improvements relating to brakes for electrically propelled vehicles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB658290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165610A (en) * | 2018-09-19 | 2021-07-23 | 福乐尼·乐姆宝公开有限公司 | Brake system for automatically controlled brake-by-wire of motor vehicle |
-
1948
- 1948-08-24 GB GB2229348A patent/GB658290A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165610A (en) * | 2018-09-19 | 2021-07-23 | 福乐尼·乐姆宝公开有限公司 | Brake system for automatically controlled brake-by-wire of motor vehicle |
| CN113165610B (en) * | 2018-09-19 | 2023-09-19 | 乐姆宝公开有限公司 | Brake system for automatic control line control of motor vehicle |
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